Misc: The coelacanth, once thought to be extinct, is what kind of creature?

Questions

On This Day In January 1965 - "Broadway" Joe ______ signed the richest rookie contract ($400,000) in the history of pro football.?

On This Day In January 1968 - Dr. Christian ______ performed the first successful heart transplant.?

On This Day In January 1968 - ______ Castro announced petroleum and sugar rationing in Cuba.?

On This Day In January 1971 - In the U.S., a federally imposed ban on ______ cigarette advertisements went into effect.?

On This Day In January 1974 - U.S. President Richard M. Nixon signed a bill requiring all states to lower the maximum speed limit to ______ MPH. The law was intended to conserve gasoline supplies during an embargo imposed by Arab oil-producing countries. Federal speed limits were abolished in 1995.?