Over 200 years. After the First Crusade (ending in 1099) the Crusades lasted off and on for over 200 years. All of the crusades were unsuccessful except for the first, but after the third (with Richard Lionheart) negotiations allowed unarmed Christians to enter the holy city.
Answer:
George Washington (February 22, 1732 – December 14, 1799) commanded the Continental Army in the American Revolutionary War (1775–1783). After serving as President of the United States (1789 to 1797), he briefly was in charge of a new army in 1798.
The appropriate response is the development of the suburbia. Rural development was encouraged by the improvement of zoning laws, redlining, and various advancements in transport. After World War II, accessibility of Federal Housing Administration contract credits fortified a lodging blast in U.S. rural areas.
China was surrounded to the west by mountains and deserts. These geographical features kept China isolated from the rest of the world, allowing its civilization to flourish in isolation from Europe and the rest of the world until the development of the Silk Road.