"Green Card" Lottery

A «green map» («Green Card») is an annual state lottery in the USA. In it can take part people practically from around the world.  

In 1990 Congress of the USA approved an annual grant 50 thousands of immigration visas to the habitants of countries with the low level of emigration in the USA. Diversity Visa Lottery Program or «Green Card» Lottery between the natives of different regions of the world. The choice of winners takes place by random numbers which are generated by a computer.