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 term crusade itself is modern, and has in more recent times been extended to include religiously motivated Christian military campaigns in the Late Middle Ages. The First Crusade arose after a call to arms in a 1095 sermon by Pope Urban II. Urban urged military support for the Byzantine Empire and its Emperor, Alexios I, who needed reinforcements for his conflict with westward migrating Turks in Anatolia.