Misc: the hollywood walk of fame star was awarded to "milton berle" for _____?

Questions

History : Which president was responsible for the Louisiana Purchase?

History : Who is "The Iron Lady"?

History : Who led the attack on the Alamo?

History : Who rode naked through the streets of Coventry?

History : Who said "Veni, vidi, vici" (I came, I saw, I conquered)?