I would have to go with Completion of the transcontinental railroad in 1869
The three things that brought about the fall of Rome when they all hit at once are:
1. multiple civil wars
2. economic collapse due to inflation
3. repeated invasions from all over
Rome used to be the most powerful country that ruled most of the world, but over time, its strength started to wane. In the end, due to many reasons, such as these above, it was forgotten and gave way to new countries being created.
By learning trades and becoming economically independent
<span>In the 1600s, the Middle Colonies accepted people of different religions and cultures. The colonists were German, Dutch, Scots-Irish, Scandinavian, English, and enslaved Africans. ... Proprietors allowed this religious tolerance for two reasons. They just wanted colonists to buy or rent land.</span>