From Barbie’s Big Break to Sputnik’s Canine Crew

Put these three events from 9 March in chronological order by year with the earliest first.

1. Kanmon roadway tunnel opened to traffic. When it was built, it held the title of the longest undersea highway in the world. 
2. The Barbie doll makes its debut at the American International Toy Fair in New York.
3. Sputnik 9 successfully launches—carrying a dog and a human dummy—demonstrating that the Soviet Union was ready to begin human spaceflight.

Good luck! The answers will be posted later.