It is called the Hegira.
It is year of Prophet (PBUH) migration from Makkah (or Mecca) to Medina (both are currently in the Kingdom of Saudi Arabia). The migration marked out the real start of Islam religion spread, the start of the real Islam society, and the establishment of the Islam State.
It's 1431 Hijrea ( after the migration of Muhammad PBUH from Mecca to Al-Madina )
it is called "Hijjri" A year in Islamic calender is called hijri since it was a migration and migration in Arabic is called hijrat and in that context it is called "hijri"
Migration is called migration because it refers to the movement of people or animals from one place to another in order to establish a new residence. The term comes from the Latin word "migrare," meaning "to move from one place to another."
The Greatest Migration was not one year. It was from 1940-1970.
This behavior is called migration. It is a regular, seasonal movement of animals from one region to another for breeding, feeding, or other purposes.
Migration studies
When birds fly South for the winter it is called migration.
It dates the migration of prophet Mohammed (PBUH) from Makkah to Almadinah (Higrah) which is the decesive date in Islam & it happened after 13 years from the start of his message in Makkah.
A migration.
it was migration not flight. it is called Hijrah or Hijrat.
Islam from the very moment of its beginning calls his believers to believe in God (or Allah in Arabic). All God prophets called for Islam that means full submission to God the Creator. Islam per Qur'an revelation to prophet Muhammad (peace be upon him) called for Islam (or full submission to God) from the first day of Qur'an revelation in year 610 AD.