What supreme court case said that
segregation (separate but equal) was
legal?

answer:

plessy v. ferguson supreme court of the u.s.

explanation:

it was said in 1896. it was a land mark decision of the u.s supreme court. "equal" facilities were the exception rather than the rule at that time. by thinking the tendency of the citizens, the supreme court said about segregation.  

there were abundant sources of fuel nearby

first representative government in british america called virginia assembly