Which two immigrant groups most swelled the u. s. population between 1820 and 1840

What did the brown board of education decision do? o a it established 'separate but equal" segregation o b. it supported cultural segregation in the classroom o c. it banned racial discrimination everywhere. o d. it ruled that segregation in schools is unconstitutional

Marx and engels believed that a communist revolution would defeat capitalism and that the revolution would be led by

After the congress of vienna europe