Misc: Tallinn is the capital of which country?

Questions

In 1979 Iran proclaimed an ---------- Republic following the fall of the Shah.?

In 1984 Marvin ---------- shot to death by his father Marvin Gaye Sr in LA.?

In 742---------- , emperor (Holy Roman Empire), born. ?

In 1805 Hans Christian---------- , danish storyteller, born. ?

In 1834 Frederic A.---------- , sculptor who created the Statue of Liberty, born. ?