Judaism, Christianity, Islam - these three world religions originated in the Middle East In Jerusalem, located in the biblical Holy Land of Palestine, you can see the shrines of all three religions, so for Jews, Christians and Muslims, Jerusalem was and remains the center of the Holy Land. In this book from the series “What is what” we will talk about the campaigns of Western Christians against Muslims in the Middle East. In 1096 g. The Pope called on believers to pilgrimage with weapons in their hands and the first crusade took place. In 1270 g. That is, almost 200 years later, Christians marched on the last crusade. Like most hikes, it was not successful and was accompanied by large casualties. Today, more than 700 years after the Crusades, Jerusalem remains a disputed city. Jerusalem means “city of peace,” but peace does not yet smell on this earth. "What Is What" is a series of thematic encyclopedias published from 1994 to 2001 by the publishing house "Word" and aimed at school-age children. Initially, it was translated materials of a similar German series "Was ist was", but later, as part of the series, the publishing house began to produce works by domestic authors. The abundance of illustrations, fascination, diversity and accessibility of the presentation of the material predetermined the great popularity of the series. "What is What" easy reading - serious knowledge!Other books in the series "What is What":Byzantine Wolves of Heaven. Flags Calendar. Caves of the Cat. Time. Dolls. Butterflies Sculpture. Our Body . Ancient Greeks Ancient myths Myths of Slavs Sun Apes Ancient China . Painting Orbital Stations . Underwater exploration of the Earth Planet Ancient Greece. Trees. Forest. Poisonous plants . Money from Russia . Multimedia and virtual worlds Natural Disasters Mountains Pyramids Museums Travelers . Crusaders Weather. Bees, Bumblebees, Wasps Moors Elephants Fish Birds Ships Gladiators Samurai. Pirates. Water. Bridges . Geographic Maps of the Witch Star. Internet Seven Wonders of the World Predators Nuclear Power Arctic and Antarctic. Indians Horses Dinosaurs Ancient Russia . Moscow Rus Revival . Mysterious Treasure Phenomena . Tropical Forest