1. Shakespeare’s character Antonio and Shylock are both merchants in what Italian city?

2. In 1968, who fasted for 25 days straight for nonviolence in a farmworkers' strike and nationwide grape boycott?

3. What occurs last in the United States on Alaska's Attu Island, where at the end of June it can happen as late as 11:57 p.m.?

4. Doris Day said "Hooray" for and Billy Joel said "Goodbye" to what place?

5. In 2012, Twitter bought what mobile app, which allows users to make six-second videos?

What’s the "Kennection" between all five answers?