The first important exposition in the United States was held in Philadelphia in 1876.

Cream of tartar 酒石 , a weak acid, can be added to egg whites to help them foam泡沫 when they are beaten

The fear of smallpox, which terrorized the eighteenth century, has no analogy(likeness) today.

The Native American interpreter Sacajawea was a valuable member of the Lewis and dark expedition in 1805.

The company issues an annual report every March.