This airticle is aboot the year 1666.

1666 (MDCLXVI) wis a common year stairtin on Fryday o the Gregorian calendar and a common year stairtin on Monanday o the Julian calendar, the 1666t year o the Common Era (CE) an Anno Domini (AD) designations, the 666t year o the 2nt millennium, the 66t year o the 17t century, an the 7t year o the 1660s decade. As o the stairt o 1666, the Gregorian calendar wis 10 days aheid o the Julian calendar, that remeened in localised use till 1923.

Millennium: 2nt millennium
Centuries: 16t century17t century18t century
Decades: 1630s  1640s  1650s  – 1660s –  1670s  1680s  1690s
Years: 1663 1664 166516661667 1668 1669



  1. Penguin Pocket On This Day. Penguin Reference Library. 2006. ISBN 0-14-102715-0.
  2. Connections (beuk), pbk: pp265, James Burke (science historian)