The period known as the Crusades, a series of religiously motivated military expeditions originally intended to bring the Levant back into Christian rule, began. Several Crusader states were founded in the eastern Mediterranean. These were all short-lived. The Crusaders would have a profound impact on many parts of Europe. Their Sack of Constantinople in 1204 brought an abrupt end to the Byzantine Empire. Though it would later be re-established, it would never recover its former glory. The Crusaders would establish trade routes that would develop into the Silk Road and open the way for the merchant republics of Genoa and Venice to become major economic powers. The Reconquista, a related movement, worked to reconquer Iberia for Christendom.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What empire was destroyed Christian Rule?
Ah, so.. unanswerable

These symmetries are represented by functions. Each of these functions sends a point in the square to the corresponding point under the symmetry. For example, r1 sends a point to its rotation 90 clockwise around the square's center, and fh sends a point to its reflection across the square's vertical middle line. Composing two of these symmetry functions gives another symmetry function. These symmetries determine a group called the dihedral group of degree 4 and denoted D4. The underlying set of the group is the above set of symmetry functions, and the group operation is function composition. Two symmetries are combined by composing them as functions, that is, applying the first one to the square, and the second one to the result of the first application. The result of performing first a and then b is written symbolically from right to left as
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What group includes the symmetries of degree 4 and denoted D4?
Ah, so.. the dihedral group

In 2009, IGN named the Xbox 360 the sixth-greatest video game console of all time, out of a field of 25. Although not the best-selling console of the seventh-generation, the Xbox 360 was deemed by TechRadar to be the most influential, by emphasizing digital media distribution and online gaming through Xbox Live, and by popularizing game achievement awards. PC Magazine considered the Xbox 360 the prototype for online gaming as it "proved that online gaming communities could thrive in the console space". Five years after the Xbox 360's original debut, the well-received Kinect motion capture camera was released, which set the record of being the fastest selling consumer electronic device in history, and extended the life of the console. Edge ranked Xbox 360 the second-best console of the 19932013 period, stating "It had its own social network, cross-game chat, new indie games every week, and the best version of just about every multiformat game...Killzone is no Halo and nowadays Gran Turismo is no Forza, but it's not about the exclusivesthere's nothing to trump Naughty Dog's PS3 output, after all. Rather, it's about the choices Microsoft made back in the original Xbox's lifetime. The PC-like architecture meant those early EA Sports titles ran at 60fps compared to only 30 on PS3, Xbox Live meant every dedicated player had an existing friends list, and Halo meant Microsoft had the killer next-generation exclusive. And when developers demo games on PC now they do it with a 360 padanother industry benchmark, and a critical one."
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): According to PC Magazine, the 360 created the prototype for what?
Ah, so..
online gaming