The period of 1815-1836 is viewed as the first "Era of Big Government" in American history because of the significant expansion of government power during this time. The government played a more active role in shaping economic policies and regulating commerce, particularly through the implementation of protective tariffs, funding infrastructure improvements, and creating a national bank. Moreover, the government took on a larger role in promoting westward expansion by supporting policies such as the Indian Removal Act, which forced many Native American tribes to relocate westward. Government power expanded during this era through the development of a national infrastructure, including roads, canals, and railroads, which were funded by federal and state governments.