Answer:
Many maintain that the primary cause of the war was the Southern states' desire to preserve the institution of slavery. Others minimize slavery and point to other factors, such as taxation or the principle of States' Rights. Two major themes emerge in these documents: slavery and states' rights.
Answer:
Transcontinental Railroad workers
Mining
Farming
Explanation:
Transcontinental Railroad workers resulted in growth
Mining, copper, lead, tin, quartz, & zinc ultimately more profitable than gold or silver. Corporations gradually came to dominate mining
Farming, cattle raising, Land given away to encourage settlement of West and to develop the family farm.
The Roman Empire officially collapsed at 476 C.E.
Later crusades marched to Egypt to <span>support the Kingdom of Jerusalem by targeting the danger.</span>
The second one. Hope this helps