- Mecca
- the first revelation's city and the Islamic call's cradle
- revelation
- the speech come down from heaven upon the Prophet's heart
- Yathrib
- the city the first Muslims migrated to from Mecca
- the Hijra
- the journey the Hijri era begins counting its years with
- the secret call
- the call in its first hidden beginnings in Mecca
- persecution
- Quraysh's hurt of the first weak believers in Mecca
- Badr
- the first great battle in all of Islamic history
- the conquest of Mecca
- the Muslims' return to Mecca in the year 630 as conquerors
- the caliphate
- the rule established after the Prophet in the Muslim ummah
- the Umayyads
- the first dynasty after the four great rightly-guided caliphs
- a century of expansion
- a hundred years of expansion across the three old continents
- tawhid (God's oneness)
- singling God alone out for worship, without any other creature
