He was the very first man to embrace Islam.
He was the first to preserve the Holy Qur'an in the form of a compiled Mushaf.
He was the pioneer in collecting and safeguarding the Holy Qur'an in its complete written form.
He was the first to take up arms against the disbelievers of Quraish in support of the Holy Prophets.
He was the first to construct a Masjid in the cause of Islam.
During the blessed lifetime of the Holy Prophet, he was the first to be honored with the leadership of Hajj.
The Holy Prophet appointed him as an Imam in Salaah, and the Holy Prophet himself offered Salaah following his lead.
He was the first of the Rightly Guided Caliphs and the first to bear the distinguished title of Caliph.
He was the first to receive the Caliphate while his father was still alive.
He was the first to establish the Baitul Maal (Islamic treasury).
He was the first to lay down the four foundational principles of Ijtihaad and legal reasoning in Islam.
He was the first to be granted the glad tidings of salvation from Hellfire by the Holy Prophet and was bestowed the exalted title of Ateeq (the One Freed from Hellfire).
(Tazkira-e-Khulafa-e-Rashideen Page 164/Farooqiya book depot, Delhi)


