I think it was invented in 1993
A because Mexico is where #1 is
The emancipation proclamation meant that all slaves still held in the rebellious states are now free. And Juneteenth is a holiday in which the day slaves where freed.
That no man should have his own possessions or land, everything is to be shared, and that way classes are eliminated and no one is on top ( rich vs. poor ). However it still usually fails and someone is always on top.