What did the supreme court say in its plessy v. ferguson decision?

In Plessy v Ferguson (1896), the Supreme Court upheld the legality of segregated public facilities based upon race.

This led to the policy of "separate but equal" which meant that throughout the United States, public and private organizations were able disallow people of color from schools and bathrooms as long as they had separate facilities for people of color.

All of the above. - Apex

a drastic rise in oil prices ended decades of postwar.

it met the katy line in vinita.

iv. it traveled through cherokee and quapaw tribal lands.