The mass demonstrations occurred on a day that historically has been the province of a variety of causes. May 1 is “Loyalty Day” in the United States, first proclaimed during the administration of President Dwight D. Eisenhower in the 1950s at the peak of “Red Scare” and Cold War era.

Protesters Across US Rally Against Trump Policies, Urge Rule of Law By Doyinsola Oladipo, Karen Freifeld and Rich McKay (Reuters) - Lawyers, teachers and politicians were among thousands of demonstrators across the U.