Note 4 — Chapter I · ELECTION OF ABU BEKR. A.H. XI. A.D. 632.
Reading edition
The date ordinarily given as that of the Prophet’s death is the 12th Rabi I. See note p. 280, Life of Mahomet, vol. iv.
For the term ‘Companion,’ technically used to signify all who had a personal acquaintance with the Prophet, see ibid. p. 564.
The era of the Hegira was established by Omar, five or six years after the Prophet’s death. The first Moharram of the first year of the Hegira corresponds with 19th April, A.D. 622. The real hegira, or flight of Mahomet from Mecca, took place two months later (June 20). See ibid. p. 145, and C. de Perceval, vol. iii. p. 17.