Is the origin of may day. it began on may 1, 1886 with a strike by a local chicago labor union that ended in a police force wounding several and killing two.

Fredrick Stanley Mockford originated the term May day, which was coined from a French word 'M'aider'.

Explanation:

Frederick Stanley was a senior pilot during his time, and was told to coin a word that could be used during times of distress. M'aider, in French means 'Help me', and is usually pronounced three times e.g Mayday! Mayday

answer; lewis henry morgan;