American Historical Association

American Historical Association, an organization of professional historians and others interested in promoting historical studies and the collection and preservation of historical manuscripts.

Assassination

Assassination, the taking of a person's life by surprise attack. The term is generally used to refer to the murder of a public figure.

Black Friday

Black Friday, a term applied in Great Britain and the United States to several Fridays on which panics or crises occurred.

Exploration

Exploration, a search that enlarges knowledge of the world, the solar system, or the universe.

Golden Age

Golden Age, a time in the history of a nation or people when the level of achievement is unusually high.

National Historic Landmark

National Historic Landmark, a place or item whose historic significance has received official recognition from the U.S.

Regicide

Regicide, a person who kills a king. The most famous English regicides were the men who in 1649, under the leadership of Oliver Cromwell, tried King Charles I of England and sentenced him to death.

Time Capsule

Time Capsule, a container, storing historical documents and objects, that is to be opened at some future date.

Treasure Hunting

Treasure Hunting, searching for lost or hidden riches, especially jewels and gold or silver in the form of coins, bullion, ornaments, candlesticks, utensils, or other objects.