The Willie Nelson Fourth of July Picnic reaches back to the summer of 1973 and a rocky ranch outside of Dripping Springs. However, the inspiration for the Picnic was the Dripping Springs Reunion, held a year prior on that same ranch, but in March.

From that confusing start and helped along by cancellations, not-really “last Picnics,” multi-day Picnics, multiple Picnics, out-of-Texas Picnics, mountains of lukewarm beer, stoned recollection and heaps of mythology, the Picnic is a hard thing to keep straight.

So we’ve brought you the definitive timeline …