I saw this posted today on the Department of Defense Instagram: https://www.instagram.com/p/CSRbv2PM95r/?utm_source=ig_web_copy_link.
It’s briefly mentioned on Wikipedia: https://en.wikipedia.org/wiki/Purple_Heart – look for August 7. It was first recognized in 2014 according to this link – https://nationaltoday.com/purple-heart-day/. YouTube video celebrating this year’s event: https://www.youtube.com/watch?v=Batx1R56U8U (around 34 seconds long).
Let’s remember the sacrifice that people who earned the Purple Heart as some gave their lives to earn it.