Many people moved to california in 1848 following the establishment of bear flag republic. the outlawing of slavery. the discovery of gold. the completion of the pacific railroad.

The correct option is "the discovery of gold"

California gold rush was a social phenomenon occurred in the United States between 1848 and 1855, characterized by the large number of immigrants who came to the vicinity of San Francisco (California) in search of the metal. This phenomenon began near the town of Coloma, when gold was discovered in Sutter's Mill. When the news of the discovery spread, around three hundred thousand people emigrated to California from the rest of the United States and other countries.

according to greek mythology, persephone, the queen of the underworld, was the daughter of zeus and demeter, the goddess of harvest and fertility. she was also called kore, which means "maiden" and grew up to be a lovely girl attracting the attention of many gods.

explanation:

for the 2 countries u can do china and america because america has a democratic government while china has a communist government.

a democracy is a government run by the people either by directly voting or indirectly by electing representatives. an oligarchy is a government run by a few or a small group of people. a democracy and oligarchy are similar because both in an oligarchy and an indirect democracy, a small group of induvial determine the laws for a large group of people they are different because in an oligarchy it is easier to control and they do not have to answer to a large number of people in the country, unlike a democracy where they do have to answer to a large number of people an county that is a democracy would be the united states. a country that is an oligarchy would be the china.