The short version of what follows

What happened on August 12, 1948 in Charsadda [EDIT: it’s been brought to my attention that this photo is NOT of the Babarra massacre but of the Jallianwala Bagh massacre (against Sikhs) of 1919.]
On August 12, 1948, two days before Pakistan was to celebrate the first anniversary of its creation (August 14, 1947), the Pakistani government attacked and killed over 600 Pashtuns during a peaceful demonstration against the unjust imprisonment of several Pashtun leaders demanding justice for Pashtuns. This took place in a town called Babarra in Charasadda, Pakhtunkhwa. Hardly anyone knows about this massacre and Pakistan doesn’t want to acknowledge it; such denial on Pakistan’s part and the ignorance on Pakistanis’, including Pashtuns’, part is unacceptable. We can’t bring the dead back, and we can’t heal the wounded, but there’s a reason history is important. It’s especially unhelpful that Pashtuns don’t know about it because that’s a part of the deliberate attempts on Pakistan’s part to keep Pashtuns as ignorant of their history as possible. I have my theories about why this is so (e.g., aware Pashtuns as a threat to Pakistan), but we’ll talk about that another time.