Please note that the dates of all the key battles of the conquest cannot be definitive and may vary by as much as four years
- Death of the Prophet, Muhammad, as an army under the command of Zayd’s young son, Usama, is mustered for a raid to avenge the defeat at Mutah in Syria in 629.
- Accession as Caliph of Abu Bakr, who decides that the paying of the charitable tithe will remain the defining test of which tribes have accepted Islam; widespread opposition.
- Death of Fatimah, leaving Ali to care for their two children, Hasan and Husain.
- The Ridda Wars – the so-called War against Apostasy.
- Abu Bakr appoints Khalid, army commander, who wins three victories:
a. Battle of Buzakha-defeat of Ghatafan tribe and allies.
b. Battle of Aqraba, day of the garden of death-defeat of Beni Hanifa tribe and death of their prophet Musaylama.
c. Battle of Ullais, ‘river of blood’ (against Arab tribes loyal to Persian Empire).
- Invasion of the Holy Land by four Arab armies, three advancing from Medina, one from the Iraq front under the command of Khalid. Three military victories in Palestine, Wadi al-Arabah, Ajnadayn and Dattin, and one in Syria, Marj al-Suffar.
- Death of Abu Bakr in August; accession of Omar to Caliphate.
- On Iraq front, Persian army defeats Muslim force at battle of al-Jisr just outside Hira.
- Muslim armies occupy chief cities of Syria and Palestine.
- On Iraq frontier, ibn Harith manages to repel Persian counterattack at battle of Buwayb.
- Arab armies evacuate all their territorial gains in Syria and Palestine as full force of Byzantine Empire sent into battle.
- In mid-August, Khalid destroys the Byzantine field army at the decisive battle of Yarmuk and speedily reoccupies all of the Near East.
- Counter-offensive by imperial army of Sassanid Persia. Yazdegird’s (last Sassanian emperor) experienced commander Rustam drawn into four-day of al-Qadsiya.
- In the aftermath of victory, Muslims occupy all of Iraq, while Sassanian forces withdraw into Persian mountains.
- Surrender of Jerusalem by Patriarch Sophronius to Caliph Omar.
- Muslim Arab armies push into northern Iraq and advance into Persia and northern Syria.
- Year of plague and famine
- Caliph Omar presides over conference of army commanders at Jabiyah.
- Amr ibn al-As leads raid into Byzantine Egypt while bulk of Muslim forces engaged in advance on Anatolia and Persia.
- Victory against Byzantine army in Egypt at battle of Heliopolis.
- Amr advances north into Nile Delta, fights battle of Nikiou and attempts siege of Alexandria.
- Emperor Heraclius dies in February.
- Byzantine counterattack into Syria and rebellion among Arab tribes of Syrian desert.
- Surrender of Alexandria to Amr by Cyril. Amr establishes Fustat as new garrison/administrative centre for Egypt.
- Muslim victory at battle of Nehawand in Persia.
- Assassination of Omar by Abu Lulu Firoz, a disgruntled prisoner of war/slave.
- Election of Uthman by council of six leading Companions.
- Amr and his nephew Oqba ibn Nafi return in triumph to Fustat having raided and conquered parts of Libya and the Sahara.
- Widespread revolts against the Muslim Empire throughout Persia, Armenia, Azerbaijan and in Egypt, aided by the arrival of the Byzantine navy. General Manuel reoccupies the Nile Delta.
- Amr (briefly appointed as commander) leads reconquest of Egypt with second battle of Nikiou and siege and sack of Alexandria.
- Uthman’s governor of Egypt leads a 40,000 strong army out of Egypt into the west, defeating army of Byzantine governor of Tunisia at battle of Sbeitla.
- Arab fleet skirmishes successfully with Byzantine fleet found off Alexandria.
- Muslim occupation of Cyprus in combined operation organized by the Arab garrisons in Egypt and Syria.
- Definitive edition of the Koran completed in Medina.
- Uthman loses the seal of the Prophet.
- Death of Yazdegird.
- After renewed threat from Byzantine fleet, Cyprus is reconquered in second invasion the same year that an Arab army secures Armenia.
- Rhodes raided by Arab fleet.
- Battle of the Masts: Arab fleet wins command of the Aegean in naval battle fought off the coast of Lycia.
- Assassination of Uthman in Medina by dissidents from army garrisons in Fustat, Kufa and Basra.
- Ali acclaimed fourth Caliph in Medina.
- Aisha plots rebellion in Mecca backed by Talha and Zubayr. Aisha and her confederates seize control of army garrison in Basra. Ali’s son, Hasan, takes command of garrison at Kufa.
- Battle of the Camel outside Basra. Talha and Zubayr are killed and Aisha is returned to Medina having recognized Ali as Caliph.
- Ali’s candidate, Muhammad ibn Bakr, becomes governor of Egypt.
- Ali marches on Syria to depose Muawiya from the governorship of Syria.
- Four day battle of Siffin culminates in a surprise decision to seek arbitration.
- Schism as Kharijites attempt to secede from Ali’s Caliphate in fury at the decision to arbitrate.
- Farcical chicanery at arbitration conference in Jordan as Amr outwits Abu Musa.
- Muawiya is proclaimed Caliph by his supporters in Damascus.
- Ali forced to fight militant Kharijites at battle of Nahrawan.
- Amr, supported by Muawiya, takes command of Egypt for the third time in his life.
- Death of Muhammad Ibn Abu Bakr.
- Muawiya renews assault on Byzantine Empire.
- Ali is assassinated in Kufa.
- Ali’s son, Hasan acclaimed as Caliph but in order to halt bloodshed surrenders his title in Muawiya’s favour.
- Zayyad and Mughira rule over Basra and Kufa as tough-minded governors of Muawiya.
- First Arab raid on Sicily.
- Muslim siege of Constantinople supported by command of the sea route.
- Foundation of Kairouan as the advance base for the conquest of North Africa by Amr’s nephew, Oqba ibn Nafi.
- Merv established as the new advance base for the conquest of Central Asia and Khorassan by drafts from Basra and Kufa.
- Hasan dies at Medina.
- Kharijite revolt suppressed by Zayyad.
- Defeat of Arab fleet at battle of Syllaeum requires that the Arab siege of Constantinople be lifted.
- Thirty-year peace is made between the two empires.
- Muawiya dies and is succeeded to the Caliphate by his son Yazid.
- Husain responds to calls of soldiers of Kufa garrison to lead them in revolt against this new hereditary monarchy. Abandoned by those whom he had come to aid, he and his band of followers are killed at Kerbala.
- In Medina and Mecca, Abdallah, son of Zubayr leads revolt against Yazid.
- Oqba ibn Nafi reaches the Atlantic coast of Morocco at the end of his legendary ride across North Africa
- An Umayyad army marches from Damascus to Medina. It wins the battle of Harran, sacks Medina, then advances and places Mecca under siege. The city’s Kaaba is accidentally burned to the ground.
- Yazid dies