When the Supreme Court ruled in favor of Louisiana against Homer Plessy, what ideology was allowed to shape laws in Southern States for the next 100 years roughly?

answer:

it caused mass african migration, african populations to grow, african empires to topple, and racism against slaves to emerge.

on february 25, 2004, at the time the president of united states of america george bush announced that he supports the constitutional amendment to ban the same-sex marriage. but the possibility was left that states can decide whether they allow civil unions.

the answer would be cities along the east coast.