Misc: Which country always leads the opening olympic procession?

Questions

The Death of a Traveling Salesman, was published in 1936. Who was the author?

Adobe announces Acrobat to ship in June what year?

1990 Soviets admit to what?

What were the words that changed the world from Martin Luther King Jr?

In 1793, George Washington laid the cornerstone for the most important government building in the United States?