Misc: What was the Rocket built by Robert Stephenson in 1829?

Questions

On This Day In January 1951 - The United Nations headquarters officially opened in ______ York City.?

On This Day In January 1961 - The play, "______ " opened on Broadway.?

On This Day In January 1969 - The supersonic ______ Concorde made its first trial flight, at Bristol.?

On This Day In January 1972 - The ocean liner Queen ______ was destroyed by fire in Hong Kong harbor.?

On This Day In January 1972 - British ______ went on strike for the first time since 1926.?