The Baháʼí calendar begins. This is the first day of the first year of the Baháʼí calendar. It is annually celebrated by members of the Baháʼí Faith as the Baháʼí New Year or Náw-Rúz.

The Baháʼí calendar used in the Baháʼí Faith is a solar calendar consisting of nineteen months and four or five intercalary days, with new year at the moment of Northern spring equinox. Each month is named after a virtue, as are the days of the week. The first year is dated from 1844 CE, the year in which the Báb began teaching.

The Baháʼí Faith is a religion founded in the 19th century that teaches the essential worth of all religions and the unity of all people. Established by Baháʼu'lláh, it initially developed in Iran and parts of the Middle East, where it has faced ongoing persecution since its inception. The religion has 5–8 million adherents spread throughout most of the world's countries and territories.

Naw-Rúz is the first day of the Baháʼí calendar year, and one of eleven holy days for adherents of the Baháʼí Faith. It occurs on the northern vernal equinox, on or near March 21, which is also the traditional Persian New Year.