Which treaty transferred ownership of florida from spain to the united states?

What best describes the transportation within cities in the early 1800s

At the beginning of the war, why was hitler allowed to continue his aggression without resistance from other european countries

Hee the american public did not truly take in the horror of adolf hitler's regime until years after the existence of concentration camps was first reported in american newspapers. partly this was the fault of the media, which did not give prominent placement to news of the holocaust. what other factors do you think contributed to the long delay in understanding the holocaust?