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The history of the United States from 1789 to 1815 was marked by the nascent years of the American Republic under the new U.S. Constitution. George Washington was elected the first president in 1789. On his own initiative, Washington created three departments, State (led by Thomas Jefferson), Treasury (led by Alexander Hamilton), and War (led ...
The United States has developed many space programs since the beginning of the spaceflight era in the mid-20th century. The government runs space programs by three primary agencies: NASA for civil space; the United States Space Force for military space; and the National Reconnaissance Office for intelligence space. These entities have invested ...
Spaceflight. Spaceflight began in the 20th century following theoretical and practical breakthroughs by Konstantin Tsiolkovsky, Robert H. Goddard, and Hermann Oberth, each of whom published works proposing rockets as the means for spaceflight. [a] The first successful large-scale rocket programs were initiated in Nazi Germany by Wernher von ...
The early history of United States space policy is linked to the US–Soviet Space Race of the 1960s, which gave way to the Space Shuttle program. At the moment, the US space policy is aimed at the exploration of the Moon and the subsequent colonization of Mars.
As a result, book-sized computers of today can outperform room-sized computers of the 1960s, and there has been a revolution in the way people live – in how they work, study, conduct business, and engage in research. World War II had a profound impact on the development of science and technology in the United States.
The history of immigration to the United States details the movement of people to the United States from the colonial era to the present day. Throughout U.S. history , the country experienced successive waves of immigration , particularly from Europe (see European Americans ) and later on from Asia (see Asian Americans ) and Latin America (see ...
1903 – Hay–Bunau-Varilla Treaty with Panama; leased strip of land increased to 10 miles (16 km) wide. 1903 – Alaska boundary treaty resolved the Alaska boundary dispute between the United States and Canada in favor of US; Washington and London become more friendly but Canada angry at Britain. 1906 – Algeciras Conference.
The history of the lands that became the United States began with the arrival of the first people in the Americas around 15,000 BC. Numerous indigenous cultures formed. After European colonization of North America began in the late 15th century, wars and epidemics decimated indigenous societies. Starting in 1585, the British Empire colonized ...