The Eastern State Penitentiary was established in 1822 by reformers advocating that prisoners be held in solitary confinement and hard labor so as to reform them.

The final decades of the twentieth century not only saw an explosion of the literary production among women, but there was also an intense interest in the lives and works of women writers.

When viewed from the window of a speeding train, the speed with which nearby objects move seems faster than that of more distant objects.

Many utilities obtain most of their electric power from large coal and nuclear operations at costs that are sometimes two to three times higher as that of power from smaller, more efficient plants that can both make use of waste heat and take advantage of the current abundance of natural gas.

Because many of Australia’s marsupials, such as the koala, are cute and cuddly, as well as being biologically different than North American marsupials, they have attracted a lot of attention after their discovery in the 1700s.

Technically,“quicksand” is the term for sand that is so saturated with water as to acquire a liquid’s character.

In the 1940s popular magazines in the United States began to report on the private lives of persons from the entertainment industry, in despite of the fact that they previously had featured individuals in business and politics.

Over the past ten years cultivated sunflowers have become a major commercial crop,second only to soybeans as a source of vegetable oil.

Normally a bone becomes fossilized through the action of groundwater, which permeates the bone, washes away its organic components, and replaces them with minerals.

According to a recent study, retirees in the United States are four times more likely to give regular financial aid to their children as to receive it from them.