Answer:
in 1862 congressed passed the pacific railway act which authorized the construction of a trans continental railroad four of the five railroad were built with assistance from the federal government through land grants
“Tecumseh used his brother's influence to convince the American Indians to put aside their traditional differences and unite together against the whites. He also visited many tribes west of the Appalachian Mountains and east of the Mississippi River seeking additional support for his confederation.”
Reference - http://www.ohiohistorycentral.org/w/Tecumseh%27s_Confederation
Did not concern us.
Didn’t want to fight another war.
Cost money.
Although the commercial activities of merchants gave rise to commercial cities and towns, these towns began to face unprecedented problems. These problems are similar to those faced by modern day urban cities; they included contagious disease, overcrowding and crime. Hope this helps. Have a nice day.
Middle kingdoms of India (or Classical India) refers to
the political entities in India from the 3rd century BCE to the 13th
century CE. This period begins after the decline of the Maurya Empire, and the corresponding rise of the Satavahana dynasty, beginning with Simuka, from 230 BCE. The "Middle" period lasts for some 1500 years, and ends in the 13th century with the rise of the Delhi Sultanate and the end of the Later Cholas (Rajendra Chola III died in 1279 CE). The period is known as the classical period of India,
during which India is estimated to have had the largest economy of the
world controlling between one third and one fourth of the world's
wealth.