Original sentence: Years in the calendar begin at the vernal equinox, and are counted with the date notation of BE (Bahá'í Era), with March 21, 1844 AD being the first day of the first year
Edited sentence: Years in the calendar begin at the vernal equinox, and are counted with the date notation of BE (Bahá'í Era), with March 21, 1844 CE being the first day of the first year