Settlers of Australia developed a strong sense of identity as "Australians" during the second half of the nineteenth century, so they wanted to break free and become an independent dominion. Australia didn't totally leave the British empire though.
Agriculture played a big part in shaping the development of Mesopotamian civilization, more surplus was left and made getting food easier. With a lot of time the people were able to get food easierand new tools and technology was created because of this.
Answer:
The answer you're looking for A On January 8, 1835, President Andrew Jackson achieves his goal of entirely paying off the United States’ national debt. It was the only time in U.S. history that the national debt stood at zero, and it precipitated one of the worst financial crises in American history.
The elimination of the national debt was both a personal issue for Jackson and the culmination of a political project as old as the nation itself. Since the time of the Revolution, American politicians had argued over the wisdom of the nation carrying debt. After independence, the federal government agreed to take on individual states’ war debts as part of the unification of the former colonies. Federalists, those who favored a stronger central government, established a national bank and argued that debt could be a useful way of fueling the new country’s economy. Their opponents, most notably Thomas Jefferson, felt that these policies favored Northeastern elites at the expense of rural Americans and saw the debt as a source of national shame.
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The answer is "D. They made strict laws."
The Mexican-American war opened up what is now the American Southwest (Arizona, New Mexico, etc) and most of California to American settlers. Following the end of the war in the mid-1800s, Mexico ceded huge swaths of land in the region which was then opened up to American settlers with California being the most popular destination.