Q001D - Chronology of the Koran Part II: Becca and the Four Rightly Guided Caliphs

Q001D - Chronology of the Koran Part II: Becca and the Four Rightly Guided Caliphs
This text deals with Original Islam and the Four Rightly Guided Caliphs and the move from Becca and Petra to Kufa and Mecca with the Abbasids in the First Civil War in Islam.

Just what and where is Becca and who are the Four Rightly Guided Caliphs? What happened to them and who took over from them? How does it all affect Islam and what does it mean to the faith now?
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