Cataracts caused parts of the riverbed today out.
Because they were looking for a new start and they needed new land and resources.
If you are retired, you do not have a source of income from a job--you rely on your savings, interest from investments, or the government (e.g., social security in the US). With a job, your salary typically increases every so often to track inflation. When you just have savings, the total value of your money stays the same while the purchasing power of that money decreases. Investment income on your savings (e.g., interest) counterbalances this effect somewhat and government programs typically give out more money to account for the effects of inflation, but neither of these counterbalancing measures may prove sufficient.
The Bill of Rights which are the first 10 amendments to the U.S. Constitution include certain civil liberties or protections such as the guarantee of free speech, free press, and the freedom of religion for American Citizens.