{ "version": "reconciled-tree-44", "policy": { "name": "Adopted monetary basis (step-parent)", "definition": "Deliberate, implemented adoption of another currency as a unit model or exchange-rate anchor, without replacing documented historical ancestry.", "subtypes": { "unit_adoption": "Dated adoption or redefinition of a principal account unit by explicit reference to another currency; no continuing peg inferred.", "exchange_rate_anchor": "Documented standing parity commitment with an operational monetary mechanism; dates, changes and limitations required." }, "admission_tests": [ "A named currency is deliberately selected; numerical coincidence is insufficient.", "The rule governs the principal account unit or general monetary regime; limited sectoral scope must be explicit.", "Implementation is evidenced by operative account definitions, conversion of obligations, issuance, redemption or intervention arrangements.", "Evidence supports the precise subtype; initial equality does not prove a continuing peg.", "Effective dates, observation dates, ratios, bands, mechanisms, endings and gaps are distinguished." ], "exclusions": [ "Shared metal content without explicit account-unit adoption", "Coin design, mint technique, subdivision or name copying alone", "Market exchange correlation or a quotation alone", "A customs tariff or individual contract valuation alone", "Reserve holdings alone", "A proposal without implementation", "Political conquest alone" ], "identity_rule": "Do not create a currency node for a peg, rescaling or change of monetary basis. A separately established new unit is adjudicated under the existing identity policy.", "kinship_rule": "Keep founding ancestry. No transitive step-parent inheritance, sibling/cousin derivation, or automatic anchor succession. Co-anchoring requires overlapping evidenced periods and is not genealogical kinship.", "depth_rule": "Exclude every adopted-basis edge and its event dates from ancestry traversal, origin dates, predecessor coverage and all strict/qualified/optional depth metrics.", "temporal_rule": "A unit adoption is an event. An anchor is a regime with dated observations and changes. Unknown end does not mean current. A switch closes the earlier anchor only where evidenced. Legal commitment and actual operation may differ.", "display_rule": "Separate opt-in overlay, purple connector with a diamond on the recipient at the event or first witnessed date; qualification uses opacity and explicit text, not the ancestry dash convention. Profiles always show admitted step-parents.", "basket_rule": "Record a basket as a structured reference, never an invented currency or several unqualified bilateral parents. No basket is admitted in this revision." }, "rows": [ { "id": "R0399", "parent": "FTM000175", "child": "FTM000278", "kind": "unit_adoption", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1891, "latest_year": 1891, "precision": "year", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1891" }, "date_role": "implemented_reform_year", "scope": "Tunisia adopted the French franc unit in the implemented 1891 reform while replacing local piastre accounting.", "territorial_scope": "Principal currency/account unit in the indicated jurisdiction.", "mechanism": "Officially reported unit substitution and franc-denominated issues.", "ratio_text": "French franc unit adopted; no universal cash-conversion ratio asserted.", "limitations": "The piastre remains the local succession parent. No continuing peg duration is inferred.", "temporal_label": "1891 · unit adoption event", "temporal": { "type": "event", "start": { "earliest_year": 1891, "latest_year": 1891, "precision": "year", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1891" }, "end": null, "end_exclusive": false, "end_status": "not_applicable_event", "observed_through": null, "continuity": "only_as_stated_in_sources" }, "rate_changes": [], "replaces_adopted_basis_id": null, "status": "supported", "display_evidence": { "status": "supported", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C981", "C1588", "C1959" ], "current_basis_claim_ids": [ "C1959" ], "source_ids": [ "S465" ] }, { "id": "R0411", "parent": "T-FTM000481", "child": "FTM000075", "kind": "unit_adoption", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1924, "latest_year": 1925, "precision": "range", "qualifier": "range", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1924–1925" }, "date_role": "implementation_window", "scope": "Guatemala deliberately defined the quetzal equal to one US dollar and chose sixty pesos per quetzal using prior dollar exchange values.", "territorial_scope": "Principal currency/account unit in the indicated jurisdiction.", "mechanism": "Monetary reform with implemented local peso conversion and subsequent quetzal issue.", "ratio_text": "1 GTQ = 1 USD at reform; 60 local pesos = 1 GTQ.", "limitations": "Dollar value was explicitly selected; this is more than matching metal content. No ongoing peg or transfer of US debts is inferred.", "temporal_label": "1924–1925 · unit adoption event", "temporal": { "type": "event", "start": { "earliest_year": 1924, "latest_year": 1925, "precision": "range", "qualifier": "range", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1924–1925" }, "end": null, "end_exclusive": false, "end_status": "not_applicable_event", "observed_through": null, "continuity": "only_as_stated_in_sources" }, "rate_changes": [], "replaces_adopted_basis_id": null, "status": "supported", "display_evidence": { "status": "supported", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C993", "C1603", "C1960" ], "current_basis_claim_ids": [ "C1960" ], "source_ids": [ "S733", "S471" ] }, { "id": "SP-V32-001", "parent": "T-FTM000497", "child": "T-FTM000464", "kind": "exchange_rate_anchor", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1935, "latest_year": 1935, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1935-11-09", "iso_date": "1935-11-09" }, "date_role": "anchor_introduction", "scope": "Hong Kong instituted a sterling anchor in 1935. Postwar tables document its continuation and 1967 parity change before the switch to USD.", "territorial_scope": "Principal currency/account unit in the indicated jurisdiction.", "mechanism": "Exchange Fund and certificates backing banknote issue; postwar official parity regime.", "ratio_text": "Initially 16 HKD per GBP; 14.55 from 23 November 1967.", "limitations": "Wartime operation and the exact pre-1972 break following sterling flotation are not fully resolved; do not read the outer dates as uninterrupted daily convertibility.", "temporal_label": "1935 introduction; postwar evidence 1946–1972", "temporal": { "type": "regime", "start": { "earliest_year": 1935, "latest_year": 1935, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1935-11-09", "iso_date": "1935-11-09" }, "end": { "earliest_year": 1972, "latest_year": 1972, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1972-07-06", "iso_date": "1972-07-06" }, "end_exclusive": true, "end_status": "documented", "observed_through": null, "continuity": "intervening_operation_not_fully_reviewed" }, "rate_changes": [ { "date": "1967-11-23", "text": "14.55 HKD per GBP; revaluation within the sterling anchor." } ], "replaces_adopted_basis_id": null, "status": "supported", "display_evidence": { "status": "supported", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C1961" ], "current_basis_claim_ids": [ "C1961" ], "source_ids": [ "S453", "S1019" ] }, { "id": "SP-V32-002", "parent": "T-FTM000481", "child": "T-FTM000464", "kind": "exchange_rate_anchor", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1972, "latest_year": 1972, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1972-07-06", "iso_date": "1972-07-06" }, "date_role": "effective_start", "scope": "Hong Kong fixed its dollar to USD in July 1972, changed the parity in February 1973, and ended the commitment when it floated in November 1974.", "territorial_scope": "Principal currency/account unit in the indicated jurisdiction.", "mechanism": "Government undertaking to maintain the specified exchange rate.", "ratio_text": "5.65 HKD per USD initially; 5.085 from 14 February 1973.", "limitations": "Separate from the 1983 currency-board episode. No dollar anchor is drawn across the floating interval.", "temporal_label": "6 July 1972 – 26 November 1974", "temporal": { "type": "regime", "start": { "earliest_year": 1972, "latest_year": 1972, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1972-07-06", "iso_date": "1972-07-06" }, "end": { "earliest_year": 1974, "latest_year": 1974, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1974-11-26", "iso_date": "1974-11-26" }, "end_exclusive": true, "end_status": "documented", "observed_through": null, "continuity": "only_as_stated_in_sources" }, "rate_changes": [ { "date": "1973-02-14", "text": "5.085 HKD per USD." } ], "replaces_adopted_basis_id": "SP-V32-001", "status": "supported", "display_evidence": { "status": "supported", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C1962" ], "current_basis_claim_ids": [ "C1962" ], "source_ids": [ "S1019" ] }, { "id": "SP-V32-003", "parent": "T-FTM000481", "child": "T-FTM000464", "kind": "exchange_rate_anchor", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1983, "latest_year": 1983, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1983-10-17", "iso_date": "1983-10-17" }, "date_role": "effective_start", "scope": "Hong Kong restored a USD link through its currency-board system in 1983; the inspected later description specifies a 7.75–7.85 exchange band.", "territorial_scope": "Principal currency/account unit in the indicated jurisdiction.", "mechanism": "Currency-board note-issue mechanism and operational exchange band.", "ratio_text": "1983 linked rate: 7.80 HKD per USD; later observed band: 7.75–7.85.", "limitations": "End not established in this review. The later band is not backdated to 1983.", "temporal_label": "17 October 1983; confirmed in the 2024 description", "temporal": { "type": "regime", "start": { "earliest_year": 1983, "latest_year": 1983, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1983-10-17", "iso_date": "1983-10-17" }, "end": null, "end_exclusive": false, "end_status": "not_established", "observed_through": "2024-06-27", "continuity": "only_as_stated_in_sources" }, "rate_changes": [ { "date": "2024-06-27", "date_role": "configuration_observed_not_introduced", "text": "7.75–7.85 HKD per USD band in the inspected description." } ], "replaces_adopted_basis_id": null, "status": "supported", "display_evidence": { "status": "supported", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C1963" ], "current_basis_claim_ids": [ "C1963" ], "source_ids": [ "S1019", "S54" ] }, { "id": "SP-V32-004", "parent": "T-FTM000497", "child": "T-FTM000515", "kind": "exchange_rate_anchor", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1965, "latest_year": 1965, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1965-10-06", "iso_date": "1965-10-06" }, "date_role": "episode_observation_not_first_anchor", "scope": "The ECCA episode used a sterling peg before the EC dollar’s 1976 switch to USD.", "territorial_scope": "Principal currency/account unit in the indicated jurisdiction.", "mechanism": "ECCA currency management with a stated sterling peg.", "ratio_text": "4.80 XCD per GBP.", "limitations": "The reviewed start is the ECCA issue witness. Earlier British Caribbean sterling links remain to be scoped; this does not create a 1965 currency identity.", "temporal_label": "ECCA episode: 6 October 1965 – 7 July 1976", "temporal": { "type": "regime", "start": { "earliest_year": 1965, "latest_year": 1965, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1965-10-06", "iso_date": "1965-10-06" }, "end": { "earliest_year": 1976, "latest_year": 1976, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1976-07-07", "iso_date": "1976-07-07" }, "end_exclusive": true, "end_status": "documented", "observed_through": null, "continuity": "only_as_stated_in_sources" }, "rate_changes": [], "replaces_adopted_basis_id": null, "status": "supported", "display_evidence": { "status": "supported", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C1964" ], "current_basis_claim_ids": [ "C1964" ], "source_ids": [ "S1020", "S1021" ] }, { "id": "SP-V32-005", "parent": "T-FTM000481", "child": "T-FTM000515", "kind": "exchange_rate_anchor", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1976, "latest_year": 1976, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1976-07-07", "iso_date": "1976-07-07" }, "date_role": "effective_start", "scope": "The East Caribbean dollar switched its anchor to USD on 7 July 1976; the ECCB confirmed the unchanged parity in 2021.", "territorial_scope": "Principal currency/account unit in the indicated jurisdiction.", "mechanism": "Fixed-rate monetary policy supported by pooled foreign reserves and the Council’s parity authority.", "ratio_text": "2.70 XCD per USD.", "limitations": "No new account identity; present status is not inferred from a 2021 release.", "temporal_label": "7 July 1976; confirmed through July 2021", "temporal": { "type": "regime", "start": { "earliest_year": 1976, "latest_year": 1976, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1976-07-07", "iso_date": "1976-07-07" }, "end": null, "end_exclusive": false, "end_status": "not_established", "observed_through": "2021-07-13", "continuity": "only_as_stated_in_sources" }, "rate_changes": [], "replaces_adopted_basis_id": "SP-V32-004", "status": "supported", "display_evidence": { "status": "supported", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C1965" ], "current_basis_claim_ids": [ "C1965" ], "source_ids": [ "S1021", "S1022" ] }, { "id": "SP-V32-006", "parent": "T-FTM000481", "child": "T-FTM000523", "kind": "exchange_rate_anchor", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1972, "latest_year": 1972, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1972-07-31", "iso_date": "1972-07-31" }, "date_role": "effective_start", "scope": "Bermuda fixed its dollar at USD parity on 31 July 1972 under amended authority to define its external value beyond sterling.", "territorial_scope": "Principal currency/account unit in the indicated jurisdiction.", "mechanism": "Amended BMA statutory parity authority and implemented exchange-rate fixing.", "ratio_text": "1 BMD per USD.", "limitations": "Distinct from the February 1970 dollar introduction. No continuous-operation or current-status claim is added.", "temporal_label": "31 July 1972 introduction; ending unreviewed", "temporal": { "type": "regime", "start": { "earliest_year": 1972, "latest_year": 1972, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1972-07-31", "iso_date": "1972-07-31" }, "end": null, "end_exclusive": false, "end_status": "not_established", "observed_through": null, "continuity": "only_as_stated_in_sources" }, "rate_changes": [], "replaces_adopted_basis_id": null, "status": "supported", "display_evidence": { "status": "supported", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C1966" ], "current_basis_claim_ids": [ "C1966" ], "source_ids": [ "S202" ] }, { "id": "SP-V32-007", "parent": "FTM000387", "child": "FTM000263", "kind": "exchange_rate_anchor", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1999, "latest_year": 1999, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1999-01-01", "iso_date": "1999-01-01" }, "date_role": "effective_start", "scope": "XOF acquired an explicit euro anchor from 1 January 1999 under the continuing monetary cooperation arrangements.", "territorial_scope": "Principal currency/account unit in the indicated jurisdiction.", "mechanism": "Continuing monetary cooperation arrangements with an explicitly published euro parity.", "ratio_text": "655.957 XOF per EUR.", "limitations": "The two CFA units remain distinct. The earlier French-franc anchor is retained in evidence and awaits a separately dated operational record. Ending and current operation are not assessed here.", "temporal_label": "1 January 1999 · euro anchor introduced", "temporal": { "type": "regime", "start": { "earliest_year": 1999, "latest_year": 1999, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1999-01-01", "iso_date": "1999-01-01" }, "end": null, "end_exclusive": false, "end_status": "not_established", "observed_through": null, "continuity": "only_as_stated_in_sources" }, "rate_changes": [], "replaces_adopted_basis_id": null, "status": "supported", "display_evidence": { "status": "supported", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C1967" ], "current_basis_claim_ids": [ "C1967" ], "source_ids": [ "S381" ] }, { "id": "SP-V32-008", "parent": "FTM000387", "child": "FTM000264", "kind": "exchange_rate_anchor", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1999, "latest_year": 1999, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1999-01-01", "iso_date": "1999-01-01" }, "date_role": "effective_start", "scope": "XAF acquired an explicit euro anchor from 1 January 1999 under the continuing monetary cooperation arrangements.", "territorial_scope": "Principal currency/account unit in the indicated jurisdiction.", "mechanism": "Continuing monetary cooperation arrangements with an explicitly published euro parity.", "ratio_text": "655.957 XAF per EUR.", "limitations": "The two CFA units remain distinct. The earlier French-franc anchor is retained in evidence and awaits a separately dated operational record. Ending and current operation are not assessed here.", "temporal_label": "1 January 1999 · euro anchor introduced", "temporal": { "type": "regime", "start": { "earliest_year": 1999, "latest_year": 1999, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1999-01-01", "iso_date": "1999-01-01" }, "end": null, "end_exclusive": false, "end_status": "not_established", "observed_through": null, "continuity": "only_as_stated_in_sources" }, "rate_changes": [], "replaces_adopted_basis_id": null, "status": "supported", "display_evidence": { "status": "supported", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C1968" ], "current_basis_claim_ids": [ "C1968" ], "source_ids": [ "S381" ] }, { "id": "SP-V32-009", "parent": "FTM000387", "child": "FTM000272", "kind": "exchange_rate_anchor", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1999, "latest_year": 1999, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1999-01-01", "iso_date": "1999-01-01" }, "date_role": "effective_start", "scope": "KMF acquired an explicit euro anchor from 1 January 1999 under the continuing monetary cooperation arrangements.", "territorial_scope": "Principal currency/account unit in the indicated jurisdiction.", "mechanism": "Continuing monetary cooperation arrangements with an explicitly published euro parity.", "ratio_text": "491.968 KMF per EUR.", "limitations": "The two CFA units remain distinct. The earlier French-franc anchor is retained in evidence and awaits a separately dated operational record. Ending and current operation are not assessed here.", "temporal_label": "1 January 1999 · euro anchor introduced", "temporal": { "type": "regime", "start": { "earliest_year": 1999, "latest_year": 1999, "precision": "day", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1999-01-01", "iso_date": "1999-01-01" }, "end": null, "end_exclusive": false, "end_status": "not_established", "observed_through": null, "continuity": "only_as_stated_in_sources" }, "rate_changes": [], "replaces_adopted_basis_id": null, "status": "supported", "display_evidence": { "status": "supported", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C1969" ], "current_basis_claim_ids": [ "C1969" ], "source_ids": [ "S381" ] }, { "id": "SP-V35-001", "parent": "CUR-V35-MUGHAL-RUPEE", "child": "FTM000031", "kind": "unit_adoption", "layer": "adopted_basis", "relationship_role": "adopted_monetary_basis", "ancestry_role": "non_ancestry_adopted_basis", "creates_currency": false, "founding_predecessor": false, "include_in_ancestry": false, "include_in_depth": false, "date_is_creation": false, "date": { "earliest_year": 1740, "latest_year": 1740, "precision": "year", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1740" }, "date_role": "implemented_reform_year", "scope": "Nader Shah’s implemented 1740 reform deliberately aligned Iranian rupee/naderi reckoning with Indian rupees and set one silver toman equal to 20 silver rupees. Record a qualified unit-adoption event, preserving Iranian ancestry; no continuing market peg is inferred.", "territorial_scope": "Iranian state account definitions and reform issues; actual commerce had a narrower and uneven response.", "mechanism": "Accounting orders and replacement rupee/naderi issues explicitly aligned to the Indian rupee; supported by VOC and EIC reports reproduced in scholarship.", "ratio_text": "1 Iranian silver toman = 20 silver rupees in the reform.", "limitations": "Qualified donor association and implementation scope. Commerce remained heavily copper-based. This is an adoption event, not a claim of enduring market parity or uniform compliance.", "temporal_label": "1740 · qualified unit adoption event", "temporal": { "type": "event", "start": { "earliest_year": 1740, "latest_year": 1740, "precision": "year", "qualifier": "reported", "calendar": "CE/BCE, historical year numbering; no year zero", "original_text": "1740" }, "end": null, "end_exclusive": false, "end_status": "not_applicable_event", "observed_through": null, "continuity": "only_as_stated_in_sources" }, "rate_changes": [], "replaces_adopted_basis_id": null, "status": "qualified", "display_evidence": { "status": "qualified", "line_style": "solid", "marker": "diamond", "qualification_scope": "this_relationship_only" }, "claim_ids": [ "C2012" ], "current_basis_claim_ids": [ "C2012" ], "source_ids": [ "S1038" ] } ] }