Answer:
the detonation of a bomb on Russian soil.
In 1949, the Americans were astonished to see that the U.S.S.R. had detonated their own atomic bomb (as a test) on their grounds. It had been only 4 years since the detonation of the atomic bombs of Hiroshima and Nagasaki and they considered it could not be sufficient time to develop the atomic bomb by themselves. Suspicion of espionage was their main option. Time proved them right. Nearly a dozen Soviet spies were convicted of passing information to the Soviets during this period about the atomic bomb in what was called the "Manhattan Project", the most famous spy being Emil Julius Klaus Fuchs. After this experience, the United States began to invest a large quantity of money in protecting their secret projects and fighting espionage.
Answer:
Francisco Vásquez de Coronado
Women turned their attention to the world outside the home. Thousands of women in the North and South joined volunteer brigades and signed up to work as nurses.
Founding Fathers
QUICK FACTS
Founding father:
George Washington
Thomas Jefferson
Benjamin Franklin
John Adams
Alexander Hamilton
James Madison
John Marshall
Abigail Adams
Samuel Adams
Dolley Madison
Accomplishments:
Founding Fathers, the most prominent statesmen of America’s Revolutionary generation, responsible for the successful war for colonial independence from Great Britain, the liberal ideas celebrated in the Declaration of Independence, and the republican form of government defined in the United States Constitution. While there are no agreed-upon criteria for inclusion, membership in this select group customarily requires conspicuous contributions at one or both of the foundings of the United States: during the American Revolution, when independence was won, or during the Constitutional Convention, when nationhood was achieved.
Most landforms change very slowly over many, many years. New mountains have formed as the plates of Earth's crust slowly collided, and others have been worn away by weathering and erosion. ... Floods and landslides can change landforms in a matter of seconds. Volcanic eruptions can also change landforms quickly.
