April is the fourth month of the year in the Gregorian calendar, the fifth in the early Julian and one of four months with a length of 30 days. April is commonly associated with the season of spring in parts of the Northern hemisphere and autumn in parts of the Southern hemisphere, where it is the seasonal equivalent to October in the Northern hemisphere and vice versa.
April symbols: The birthstone for April is the diamond. The birth flower is typically listed as either the Daisy (Bellis perennis) or the Sweet Pea. The zodiac signs for the month of April are Aries (until April 20) and Taurus (April 21 onwards).
Historical Events for April, 1521
Day of Week 7th » Ferdinand Magellan arrives at Cebu (island) known as Cebu.
Day of Week 17th » Trial of Martin Luther over his Lutheranism called teachings begins during the assembly of the Diet of Worms. Initially intimidated, he asks for time to reflect before answering and is given a stay of one day.
Day of Week 18th » Trial of Martin Luther begins its second day during the assembly of the Diet of Worms. He refuses to recant his Lutheranism or teachings despite the risk of excommunication.
Day of Week 23rd » Battle of Villalar: Charles V, Holy Roman Emperor known as King Charles I of Spain defeats the Revolt of the Comuneros or Comuneros.
Day of Week 27th » Battle of Mactan: Explorer Ferdinand Magellan is killed by natives in the Philippines led by chief Lapu-Lapu.
Day of Week 29th » Swedish War of Liberation: Swedish troops under Gustav Vasa defeat a Danish force under Didrik Slagheck in the Battle of Västerås and soon capture the city of Västerås. The Danish-held castle, however, does not surrender to the Swedes until 31 January the