40s
Centuries: 1st century BC - 1st century - 2nd century
Decades: 10s BC - 0s - 10s - 20s - 30s - 40s - 50s - 60s - 70s - 80s - 90s
40 41 42 43 44 45 46 47 48 49
Sometimes the '40s is used as shorthand for the 1940s, the 1840s, or other such decades in various centuries
Events and Trends
Siginificant People