1890-1900
The answer will depend on which country or region the question is about.
1890-1900
India
In the last decade there was terror in the west. The 1940s DECADE experienced World War, V-J Day and the start of the Cold War.
No largest one; each runs exactly ten years.
1850
No largest one; each runs exactly ten years.
Nightly Business Report - 1981 Careers for the Next Decade was released on: USA: 26 November 2009
1760's
triennium
Last decade
Year, Decade, Century, Millennium