What happened on the following dates 610 ce 619 ce 622 ce 630 ce 632 ce?

When did Second Crusade happen? What are four important developments in human culture? What improvements have been made to the clock over the years? What does the Roman colisuem suggest about the Roman society? What was exchanged in the feudal contract in the medieval times? Where does surname Kyle come from? What is a medieval quarry? Charles V of the holy roman empire and Charles you of Spain were the same man? Why did the renaissance movement begin? Where does the knowledge of kublai Khan and China under Mongols rule come from? Who led the invasion of England in the high middle ages? What problems did Europe face between 1560 and 1650? What is the origin of the name Chuck from the name Charles? Where did smallpox begin? When does a millennium end? What is the meaning of chislev? Why did eliminating European domination of Latin America not bring about significant economic and social change? What origin is the word expedite? What were medieval rich people called? Which of the following cannot be the first day of a century year. a.Friday Wednesday b.Saturday Friday c.Tuesday Sunday d. Thursday Monday.?