Woodstock was, like many storied musical occasions, a once-in-a-lifetime occurrence. However, the impacts of the 1969 festival have continued to ripple outward for decades, permanently altering the business of live music and inspiring millions, many of whom weren’t even born at the time. To honor the 50th anniversary of more than 400,000 gathering on a muddy dairy farm in upstate New York for what was billed as “three days of peace & music,” here are the most objective and important ways Woodstock’s influence changed the world, in ways that can still be felt today.