Why did massive numbers of immigrants pour into california in the late 1840s and early 1850s?

During the early neolithic era, people relied on domesticated animals to provide each of the following except a. hides for clothes b. labor to pull plows c. manure for the soil d. meat, cheese, and milk for food

How was george washington able to defeat the british in the battle of trenton and princeton

Why did prestdent trumen veto the taft-hartly act