Why was the split then? - Jon
What was the history of the conflict? - Jon
How does geographical location and language factor into this? - Jon

What was the history of the conflict? - Jon
Until 1054 the Eastern and the Roman were two branches of the same sacramental body. The division began when the Roman emperor Constantine moved his capital from Rome to Constantinople in 330 A.D. Powerful church leaders claimed authority over large regions and were vying for supremacy. There was the bishop of Rome in the West, and four patriarchs in the East. The main point of contention between the eastern and the western divisions was the papacy. More important than doctrine was the issue of power and authority. The Eastern Orthodox rejected the pope, while retaining Rome's sacramental system and most of Rome's unscriptural doctrines.

why was the split then?
The East-West Schism, known also as the Great Schism (though this latter term sometimes refers to the later Western Schism), was the event that divided Chalcedonian Christianity into Latin Western Catholicism and Greek-Byzantine Eastern Orthodoxy. Though normally dated to 1054, the East-West Schism was actually the result of an extended period of estrangement between the two Churches. The primary causes of the Schism were disputes over papal authority—the Pope claimed he held authority over the four Eastern Greek-speaking patriarchs, and over the insertion of the filioque clause into the Nicene Creed. Eastern Orthodox today claim that the primacy of the Patriarch of Rome was only honorary, and thus he had authority only over Western Christians and does not have the authority to change the decisions of the Ecumenical Councils. There were other, less significant catalysts for the Schism, including variance over liturgical practices and conflicting claims of jurisdiction.

How does geographical location and language factor into this? - Jon
Western Christianity's doctrine of original sin. Some people attribute Western Christianity's holding this doctrine to the influence of St. Augustine.
Most Western Christians use an amended version of the Nicene Creed that says the Holy Spirit "proceeds from the Father and the Son". That is considered heretical by most Eastern Christians, who use the Creed as originally promulgated by the Council of Nicaea, saying that the Holy Spirit "proceeds from the Father" (See Filioque clause). The Old Catholic Church is one Western denomination that leaves out "and the son" from the Creed.
The date of Easter usually differs between Western and Eastern Christianity.
The word “orthodox” comes from the Greek language and literally means “correct worship and belief.”
west churches were spoken in latin


http://www.reference.com/browse/wiki/East-West_Schism