Snow squalls and freezing temperatures may make it hard to imagine anything outdoors, but this year marks the 50th anniversary of the most famous outdoor concert in history, ‘Woodstock.’

The three-day rock festival was the first of its kind and went on to define an entire generation while acting as the blueprint for music festivals today.

Held on Aug. 15 to 18 1969 on a dairy farm in upstate New York, Woodstock was marketed as “three days of peace and music,” a tagline that would go down in history and actually sum up the festival quite well.

The hay field the shows were held at housed an estimated audience of 450,000, yet there was not a single report of violence from the weekend (there were, allegedly, two births that happened during the concert, however).

Generational talents of the time headlined the music festival and made for some of its most memorable moments today. Jimi Hendrix’s rendition of “The Star-Spangled Banner” would become one of the more celebrated performances. Using only his synonymous Fender Stratocaster, Hendrix belted out the anthem with ferocity, at times making his guitar sound like more of a war-zone than an instrument.

Richie Havens, who had the task of opening Woodstock, would start an impromptu jam while on stage. The jam started with some simple strumming and the repeated phrase, “freedom.” A year later, Havens would release a studio version of the song that would become one of the bigger hits of his career.

The big names did not stop there; The Who, Janis Joplin, Creedence Clearwater Revival and so much more. All the artists were at the absolute peaks of their careers putting on a show in the middle of nowhere for a couple hundred thousand society-deemed “hippies.”

How much did it cost to attend this legendary weekend?

Well, one-day tickets were sold at $6.50 a piece, or tickets for all three days were at the steep price of $18. To put that into perspective, tickets for Coachella, essentially a modern-day Woodstock, range in price from $450 to $1,000 typically.

It’s hard to picture Woodstock as anything but the innovative rock fest that it was, but it almost took a last minute turn for the worse, a la today’s Fyre Fest.

Woodstock was, as its name implies, originally intended to take place in Woodstock, New York, but a viable location for hundreds of thousands of people could not be found in the rural town. This turned out fine because those in charge found a suitable location in close by Wallkill, New York.

The real disaster struck just a month before the festival was to start when the permits for the concert were revoked. Somehow, those in charge found the dairy farm last minute, and the rest is history.

Woodstock made the “Summer of Love” what it was. It perfectly encapsulated the youth of the time and ignited the hippie lifestyle that would run rampant throughout the 1970s. The three days of peace and music gave the stage to some of the best to ever do it in music, and was pretty far out, man.