400s (decade)
Template:Short description Template:Decadebox The 400s decade ran from January 1, 400, to December 31, 409.
Template:Events by year for decade
Significant peopleEdit
Template:Births and deaths by year for decade
Template:Short description Template:Decadebox The 400s decade ran from January 1, 400, to December 31, 409.
Template:Events by year for decade
Template:Births and deaths by year for decade