What trade route linked china with the middle east and europe?

Iwant to be an engineer but cant do math for the life of me, but i also want to be a cop. "what should i do"

When president johnson vetoed a law that would extend the freedmen’s bureau, congress reacted by supporting the veto and closing the freedmen’s bureau. writing a new law to show support for the black codes. overriding the veto and expanding the agency’s powers. drafting a law to prevent african americans from voting.

Why did president johnson decide not to run for reelection in 1968?