The first parade was held in 3 march 1913
Before farming, people lived by hunting wild animals and gathering wild plants. When supplies ran out, these hunter-gatherers moved on. Farming meant that people did not need to travel to find food. Instead, they began to live in settled communities, and grew crops or raised animals on nearby land.
The constitution of the United States set up a set of checks and balances among the three branches of government. The Legislative, Executive and Judicial powers constitute the structure of the american government, and they have power to check each other's way of work.
One example of the check and balance system is that the Supreme court of the United States may check congress by declaring a law passed by this one as unconstitutional. This is a clear check limit used against the legislative power, that is the congress. But on the other hand, the power is balanced because the members of the Supreme Court are appointed by the President of the country (the Executive power), and to be appointed they have to be approved by the Congress.
