1778

Centuries:	18th century 19th century
Decades:	1750s 1760s 1770s 1780s 1790s
Years:	1775 1776 1777 1778 1779 1780 1781
Categories:	Births - Deaths Establishments - Publications
Media:	1778 (Events)

1778 was a common year of the Gregorian calendar and a common year of the Julian calendar, the 1778th year of the Common Era (CE), the 78th year of the 18th century, and the 9th year of the 1770s decade. As of the start of 1778, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.