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	Tet offensive Tet offensive 1968, a series of crucial battles in the Vietnam War . On Jan. 31, 1968, the first day of the celebration of the lunar new year, Vietnam's most important holiday, the Vietnamese Communists launched a major offensive throughout South Vietnam. It took weeks for U.S. and South... Read more
	holiday holiday [altered from holy day], day set aside for the commemoration of an important event. Holidays are often accompanied by public ceremonies, such as parades and carnivals, and by religious observances; they may also be simply a time for relaxation. Days of commemoration are observed throughout... Read more
	Flag Day Flag Day anniversary of the adoption of the American flag in 1777. It is celebrated on June 14 but is not a legal holiday.... Read more
	Priapus Priapus , in Greek religion, fertility god of gardens and herds; son of Aphrodite and Dionysus. He was represented as a grotesque little man with an enormous phallus. Priapus was important in fertility rites.... Read more
	Malvasia Malvasia or Monemvasía , village, S Greece, in the Peloponnesus, on a rocky island joined to the mainland by a mole. In the Middle Ages it was a fortress and an important commercial port, exporting Malvasian or malmsey wine, a type now made in many places. It was (1821) the seat of the... Read more
	Saint David Saint David d.588?, patron saint of Wales, first abbot of Menevia (present-day Saint David's ). He apparently established a strict rule and was a zealous missionary, founding 12 monasteries. His cult, which was popular in Wales from very early days, made the pilgrimage to his shrine important in... Read more
	Holidays HOLIDAYS HOLIDAYS. Holidays are "holy days," when people interrupt the profane, mundane round of production and celebrate with the preparation and eating of special foods and meals. The two basic forms of holidays are a festival (from Latin festum for 'feast'), when people break their normal... Read more
	concentration concentration in chemistry, measure of the relative proportions of two or more quantities in a mixture . The concentration of a solute is very important in studying chemical reactions because it determines how often molecules collide in solution and thus indirectly determines the rates of... Read more
	Independence Day Independence Day 1. also called Fourth of July a U.S. holiday observed every July 4 to commemorate the adoption by the Continental Congress of the Declaration of Independence on July 4, 1776. Although observance of the holiday began in Philadelphia on July 8, 1776, the day was not made a legal... Read more
	Birthday Birthday The celebration of the anniversary of one's birth is a phenomenon of modern industrial society. It is connected to the rise of a scientific way of thinking and to new attitudes about children and childhood. Perfection of the calendar by the Egyptians and Mesopotamians enabled people to... Read more