You will find the Biblical accounts of the Ascension in Matthew 28:16-20, Mark 16:19-20, Luke 24:50-53 and Acts 1:6-11. 

During the forty-day period before he ascended into heaven, it is believed that Jesus preached and intermingled with his apostles and disciples. 

According to tradition, Ascension Day was first celebrated in 68 AD, however the first written evidence of the Ascension Day Feast occurred in 385 AD. 

Today, Ascension Day is celebrated primarily by Catholics and Anglican Christians. According to the Western Christianity methods of calculating the dates of Easter, the earliest possible date for Ascension Day is April 30, the latest possible date is June 3. 

In Indonesai it is known as “Hari Kenaikan Yesus Kristus” and celebrated in a similar way with church services