I would assume that by formed, you mean admitted into statehood. By the year of 1900, fourty-five states (out of fifty) have been admitted into statehood. read more
if i am correct, i am sure we have declared war about 4 or 5 times. Good question. read more
Within a few years, both the United States and the Soviet Union had sent satellites, animals and people into orbit. In 1969 the Apollo 11 mission put Neil Armstrong and Buzz Aldrin on the Moon. read more