How are timelines useful for studying history?

How many kills to become a World War 1 ace? What was the Elizabethan period also called? When tension breaks a rock layer it makes what kind of fault? What was one of the earliest recorded computer related crimes? Does Old Glory fly at the Betsy Ross House in Philadelphia? What were there tactics for the allies in World War 1? Where did Chester Alan Arthur go to college? What was the Treaty of Kanagawa? What are the school times in Poland? Which was the most important event of d day? Famous Chinese cloth? Why did the Romans persecute the early christians? What bad thing did the Hessian do? When and how did Richard lionheart die? How many roman roads are there in the UK? What were the four main parts of the army in the English Civil War? Who delivered his famous Give me liberty or give me death speech in 1775? Leaders of the enlightenment of America? Who were the leaders in Mesopotamia? Why do people go as pilgrims to Rome?