Police Clear Columbia Protest -- Just As They Did On Same Day 56 Years Ago [View all]

On April 30, 1968, police flooded onto Columbia University's campus to end a demonstration students had staged — a scene that was eerily repeated 56 years later.

A large group of New York police officers cleared Columbia University’s weeklong pro-Palestinian protest encampment, including a building that was occupied by protesters, late Tuesday night.
On the same day 56 years earlier, the front page of Columbia’s student newspaper featured similar scenes of officers storming into crowds of students protesting the Vietnam War and proposed segregation policies.

Link to tweet

The resurfaced front page of the Columbia Spectator, which was posted on X (formerly Twitter) by Omar Jimenez, stated that on April 30, 1968, Columbia University called 1,000 police officers to end the demonstration at multiple buildings — including Hamilton Hall. The situation ended in nearly 700 arrests and 100 injuries.

https://www.huffpost.com/entry/police-columbia-university-protest-1968-parallel_n_6631b722e4b0279447ac9c63

I wonder what could be the correlation between the 2? No geographical significance? Both dates had Democratic presidents.

Could it be perhaps a violent war that is trying to exterminate the opposing side?