From 28 July 1914 to 11 November 1918
Answer:
Explanation:
The basic political unit in the United States is the state. States - one of the 50 components of the administrative and political units whose sovereignty is shared with the federal government of the United States. The state has a unique function in the American system of government because of the way the nation developed. Initially, at the announcement of independence of the United States, the new state entered 13 colonies later the first 13 US states. Further, as a result of wars, buying and voluntary association are attached other states.
France Britain Russia Canada USA Italy vs Germany Austria-Hungary turkey Bulgaria
Serious space research began in world war two.In 1957 the Russians and in 1958 the Americans launched unmanned satellites 120 miles above the earth atmosphere. In 1961 the USER sent the first man in "space". Afterwards the two countries raced each other putting larger craft with Upto 4 persons in space.After that many children dream being astronauts.
