It was the anti-westward movment forbidding all settlers to cross the appalachian mountains.
It established that Congress had the power to incorporate banks, and that maryland could not tax the banks.
Jews were encouraged to leave the country, they forced Jews out of schools and professions like medicine and teaching, they banned Jew/Non-Jew relationships, segregation, forced them to wear the Star of David. The Nazis started off small, but eventually took away huge rights for them.
Dalton's atomic theory includes B. Atoms of the same element are always identical.
Not sure if this will help but here's what I put:
They developed lots of new techniques for buildings and constructions. They also brought about incredibly well put together aqueducts that ran for miles. They built military roads and they are still a basis for many things that we build today.
They talked about equality under the law, and also came up with The Twelve Tables, which are very well known today. Christianity was banned in ancient Rome and Christians were punished for a very long time because of this. They were even fed to lions as entertainment.
