Building the Panama Canal, 1903–1914. President Theodore Roosevelt oversaw the realization of a long-term United States goal—a trans-isthmiancanal. Throughout the 1800s,American and British leaders and businessmen wanted to ship goods quickly and cheaply between the Atlantic and Pacific coasts.
Answer:
The govt of the Tang and Song constructed the Grand Canal which improved the transportation of goods and people. They also introduced a money economy. The creation of paper money by the Song dynasty made trade even more important.
Answer:
The Lousiana Purchase
Explanation:
They were able to expand westward when Thomas Jefferson purchased Louisiana. This became of bad effect because the Missouri Compromise didn't involve the westward expansion. The Missouri Compromise was writing that tried to outlaw slavery, but sense it didnt evolve around Louisiana, the people there could continue with slavery. This was why expanding had bad effects.
Can you rephrase is so that way I can probably help
