a month in the Gregorian calendar

the solar calendar now in general use, introduced by Gregory XIII in 1582 to correct an error in the Julian calendar by suppressing 10 days, making Oct 5 be called Oct 15, and providing that only centenary years divisible by 400 should be leap years; it was adopted by Great Britain and the American colonies in 1752

the first day of April which is celebrated by playing practical jokes

a day celebrating political and economic unity among American countries

the 3rd Monday in April; Massachusetts and Maine celebrate the battle of Lexington and Concord in 1775

the middle part of April

the solar calendar now in general use, introduced by Gregory XIII in 1582 to correct an error in the Julian calendar by suppressing 10 days, making Oct 5 be called Oct 15, and providing that only centenary years divisible by 400 should be leap years; it was adopted by Great Britain and the American colonies in 1752

the first day of April which is celebrated by playing practical jokes

a day celebrating political and economic unity among American countries

the 3rd Monday in April; Massachusetts and Maine celebrate the battle of Lexington and Concord in 1775

the middle part of April