9th February » Pope Gregory XV or Gregory XV becomes Pope, the last Pope Papal election e.g elected by acclamation.
17th February » Myles Standish is appointed as first commander of Plymouth, Massachusetts e.g Plymouth colony.
16th March » Samoset, a Mohegan, visited the settlers of Plymouth Colony and greets them, "Welcome, Englishmen! My name is Samoset."
22nd March » The Pilgrim (Plymouth Colony) known as Pilgrims of Plymouth Colony sign a peace treaty with Massasoit of the Wampanoag (tribe) named Wampanoags.
5th April » The 'Mayflower' sets sail from Plymouth, Massachusetts on a return trip to England.
24th May » The Protestant Union is formally dissolved.
3rd June » The Dutch West India Company receives a charter for New Netherland.
21st June » Execution of 27 Czech people or Czech noblemen on the Old Town Square in Prague as a consequence of the Battle of White Mountain.
Famous Birthdays in 1621
27th January » Thomas Willis, English physician (d. 1675)
2nd February » Johannes Schefferus, Swedish author (d. 1679)
21st February » Rebecca Nurse, English-American victim of the Salem witch trials (d. 1692)
28th March » Heinrich Schwemmer German composer and educator (d. 1696)
31st March » Andrew Marvell, English poet and politician (d. 1678)
23rd April » William Penn (Royal Navy officer) named William Penn, English admiral and politician (d. 1670)
25th April » Roger Boyle, 1st Earl of Orrery, English soldier and politician (d. 1679)
8th July » Jean de La Fontaine, French author and poet (d. 1695)
22nd July » Anthony Ashley Cooper, 1st Earl of Shaftesbury, English politician, Lord Chancellor named Lord Chancellor of the United Kingdon (d. 1683)
19th August » Gerbrand van den Eeckhout, Dutch painter (d. 1674)
8th September » Louis, Grand Condé, French general (d. 1686)
23rd December » Heneage Finch, 1st Earl of Nottingham, English politician, Lord Chancellor of England (d. 1682)
23rd December » Edmund Berry Godfrey, English judge (d. 1678)