Russians comprised approximately one third of Brazil's European immigrant population
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We (as in 2016) cannot use the land bridge because of the melting of the glaciers. Back then the glaciers were still in one piece and the sea levels were much lower than now. This allowed the early people to cross the bearing straight.
Answer:
b) He founded a chain of missions
He founded nine of California's Spanish missions
People could worship as they pleased, but non-Muslims had to pay higher taxes.