Answer:
Nineteen men hijacked four fuel-loaded US commercial airplanes bound for west coast destinations. A total of 2,977 people were killed in New York City, Washington, DC and outside of Shanksville, Pennsylvania. The attack was orchestrated by al Qaeda leader Osama bin Laden. It was done to insight fear in americans, and show the power of their movement.
People traveled to California during the Gold Rush because they wanted to find gold and get rich.
The California Gold Rush took place from 1848-1857. It was the largest American mass migration with an estimated 300,000 migrants taking part. Gold was recovered from the ground, streams, and rivers bringing in flocks if gold finding hopefuls.
The goal was to persuade the States that the time had come to declare their independence from Mother England for the United Colonies.