If you are familiar with any object-oriented language. such as C++, Java, or Python you probably have a decent idea what it specifies. No. software is required for this tutorial. Presented by developerWorks, your source for great tutorials ibm.com/developerWorks. Interface Definition Language Page 2. Section 2.
The official start date was set as August 15, 1096. Those armies that left before that time are considered part of the People's Crusade. Three of these armies never made it past Hungary; two others (under Peter the Hermit and Walter Sansavoir) were defeated by Kilij Arslan of Nicaea. Traditionally, the First Crusade deals with those who left after that official start date. As with the People's Crusade, these crusaders did not form one unified army.
The Crusades were a several centuries delayed response to Islamic jihad. When Pope Urban II called the First Crusade in 1095, the followers of the prophet had already spread across the Middle East and North Africa by force.