Here are some one liners...
A Man with Vision -- Nicholas of Cusa invents glasses for the nearsighted. He also posits that there are other worlds with beings such as ourselves.
The Afghan Empire -- The Lodi dynasty is established in northern India. It is the first and last time an Afghan family will rule over the area but they will make an impression.
Christopher Columbus is Born... Jewish? -- No one really knows where or when Columbus was born. Many theories exist: each with some support... including one that claims he was born Jewish.