He became our first president.
In addition to the Federal income tax, people can also pay for example:
-some local (for example state) taxes
-property taxes - taxes on the value of their property
-sales taxes, applied to purchases.
Their employers also have to pay payroll taxes, and self-employed have to pay those, too.
Answer:
When the Mexicans formally ceded California to the United States in the 1848 Treaty of Guadalupe, San Francisco was still a small town with perhaps 900 occupants.
It basically meant the US would help protect Democracy in other countries in any way it could.