Today is the appearance day of Lord Balarama, the Personality of Godhead who is the first expansion of Lord Krishna, the original Personality of Godhead. Krishna states in the Bhagavad-gita (4.7):
yada yada hi dharmasya
glanir bhavati bharata
abhyutthanam adharmasya
tadatmanam srjamy aham
“Whenever and wherever there is a decline in religious practice, O descendant of Bharata, and a predominant rise of irreligion—at that time I descend Myself.”
Krishna says, srjamy aham: “I manifest Myself

