What actually caused the american revolution?

What does the term “escalation” refer to?

The ottoman turks advanced rapidity into the balkans,until only austria lay between them and western european. true or false

What was one reason that southern states passed laws after 1800 to discourage manumission? 1)southern whites feared that freed blacks would seek revenge for past treatment as slaves. 2) northern leaders pressured southerners to liberate enslaved people. 3)southern states needed an inexpensive labor force to work in southern factories. 4)northern whites had sold their slaves to southerners before slavery was banned in the north.