Misc: [science and technology] what is the name given to the short tail of a rabbit?

Questions

Joe Walker in X-15 test plane reaches 106 km (67 miles), straight up.?

The first one-way streets are established -- in London.?

Louis XVI, king of France (1774-92); guillotined, born.?

Britain abolishes slavery in colonies; 700,000 slaves freed.?

Gene Kelly, dancer, actor, singer in the rain, born.?