la Nina the christ child.
Miscegenation.
I'm not sure to which time period you're referring, but intermarriage does occur between Japanese and Filipinos.
Intermarriage
The alpha family won't allow to have intermarriage with the beta family without the approval of both chief of alpha and beta family.
Intermarriage IS a good thing. People get to mix cultures and religion. They can learn about other cultures and stuff so it is a good thing
Arguably the most significant problem stemming from Brazil's economic development is the destruction of the Amazon Rainforest. A link is provided.
They cannot "prevent" intermarriage since it is legal. They themselves do not practice it, however, and they can be very obnoxious in letting their viewpoints on the subject be known.
I think it was malaria - very serious - caused by mosquito bites.
Yes and no. At first the two classes could intermarry, then a law was passed forbidding marriage between them. The laws was then changed again allowing intermarriage. By the mid to late republic both classes were the nobility so intermarriage was common.
The policy towards intermarriage with natives was to produce a hybrid progeny among the natives which may be superior than the existing ones.
During WW 2 the US needed rubber for its war manufacturing plants. The main source for the US was Brazil. This caused many long range German submarines to cruise along the coasts of Brazil to sink cargo ships that might be transporting rubber to the US