April 14th is Vaisakhi. Now celebrated throughout the world, Vaisakhi (also know as Baisakhi) is traditionally a Punjabi harvest festival.
It’s an especially significant holiday among the Sikh community as it commemorates the establishment of the Khalsa (the “sovereign” collective of the “five beloved ones” of Sikh leaders) as well. But the date is also an important one for Hindus and Buddhists as it is the start of the New Year in the Nanakshahi solar calendar.