I think your question means how did the discovery of gold contribute to the creation of the transcontinental railroad. There had been some movements toward westward settlement in the 1840s, but that trend accelerated dramatically with the discovery of gold in California. James Marshall's finding of gold at Sutter's Mill in California in 1848 led to a "gold rush" in the decade that followed, with 1849 seeing a huge influx of people to California. (Thus we refer to the '49ers.) The swift settlement of California added incentive to build a transcontinental railway. The Pacific Railroad Act of 1862 established the charter for doing that. The First Transcontinental Railroad was completed in 1869.
The United States, Britain, Russia, and Spain
In America we have our 3 branches of government- Executive, Legislative, and the Judicial branch. The legislative branch is what makes our laws. It is ran by the Congress (House and Senate). It is used to create laws, declare war, and to regulate taxes.
The executive branch is ran by the President, Vice president, and the cabinet. Legislative is responsible for enforcing the laws whether is a federal law or a state law. They carry out the laws.
The Judicial branch is what applies the laws. They also go over any cases or debates about laws that are put in by the congress or constitution.
The system of checks and balances serve as a system to make sure that none of the braches of government gets more power than the others. It *balances* (pun indented) the amount of power each branch has. Checks and balances is also known as separation of powers. Which is why it's so important because it keeps the branches equal.
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