1. What forces and events affected national unity and growth?
FIRST ANSWER GETS BRAINLIEST ANSWER!!!

this is what strengthened the nation were the Industrial Revolution fueling economic growth, the American System encouraging economic self-sufficiency, improving transportation and communication by linking cities and regions, and the United States expanding and defining borders.

Explanation:Some weakened forces were  new industry and inventions leading to reliance on manufacturing in the North and increasing dependence on cotton and slavery in the South, slavery dividing the nation, and regional differences dividing the nation among Northerners, Southerners, and Westerners.    Industrial Revolution was where more people began to invent new products and sell them it began fueling economic growth. Some of the  inventions had even made work more productive and profitable. people learned   that they did not need to have everything shipped from Europe, and it saved them money.cotton gin greatly increased the production of cotton,  made it more profitable.

well this is going to be a long answer lol ok so the visigoths were a branch of the goths who frequently raided rome, uh the hunas attacked the guptas a lot and weakened them, uuhm of course the romans used math and science in there every day lives i mean they had a whole empire to run, and rome was split into east and west by a general named diocletian. hope this you! : )