Throughout the world Muslims are celebrating Eid al-Adha (Arabic, in other languages called by different names), the Festival of Sacrifice, commemorating Ibrahim's willingness to sacrifice his son by God's command. (God was just testing Ibrahim's devotion; a ram was sacrificed instead.)
This is the year 1429 after the Hijra, the emigration of the Prophet Muhammed and his followers from Mecca to Medina, in Arabia.
Vleeptron isn't late for this one, Eid begins today, and is celebrated for three days.
Ibrahim is Abraham, founder of the Ibrahimic/Abrahamic religions, mainly (but not exclusively): Judaism, Islam, Christianity.