The pro-Palestinian protesters making themselves heard at universities across the country see their demonstrations as part of a tradition of anti-war activism on campus. Hundreds of students have been arrested after setting up encampments on school grounds and demanding their institutions call for a cease-fire in Gaza and divest their endowments away from companies associated with Israel. While universities and police have made changes over the decades in their handling of student protests, experts are pointing to similarities with years past on the activists’ demands and public perception. “They are pretty similar in a number of important ways and also...