Final answer:
During the California Gold Rush, newcomers from the eastern United States asserted their dominance over California through heavy taxation, disregarding Mexican land titles, and restricting mining methods.
Step-by-step explanation:
During the California Gold Rush, newcomers from the eastern United States asserted their dominance over California in several ways.
Firstly, they levied a heavy tax on foreign miners, which made it difficult for them to compete and assert their rights.
Additionally, they did not honor land titles created under Mexican law, leading to Mexican Americans losing their land and their rights. Finally, they only allowed expensive placer mining, which further limited the opportunities for others to participate in the gold rush.
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