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Currency history

European Currency Unit (ECU)

European Currency Unit: a historical unit of account.

Dates in use
Introduction uncertain; ended 1999
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European Currency Unit

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The story

The 1994 ECU definition includes sterling and Danish-krone components; basket inclusion is distinct from later national euro adoption. [1]

Turning points

Ecu ems policy resolution

The December 1978 resolution specifies identical initial ECU and EUA value/composition and plans EMS establishment for 1 January 1979. [2]

Ems agreement signed

Inference: BIS dates signature of the EMS/ECU agreement in Basel to 13 March 1979, separately from the earlier planned January start. [3]

Defined ecu references replaced

Defined ECU references in legal instruments become euro references at 1:1 from 1 January 1999; an undefined ECU reference carries a rebuttable presumption. [4]

Sources and evidence

  1. Council of the European Union · Council Regulation (EC) 3320/94 — definition of the ECU C651 ↗
  2. European Council · European Council resolution of 5 December 1978 on the European Monetary System C654 ↗
  3. Bank for International Settlements · BIS Timelines — 1973–1993 C655 ↗
  4. Council of the European Union · Council Regulation (EC) 1103/97, 17 June 1997 C642 ↗

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“European Currency Unit (ECU).” The Family Tree of Money. © Field Technologies, Inc. Reader edition 2026-10-13; research dataset v44. https://familytreeofmoney.org/currency/FTM000386.html

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