March 19, 1930

Pope Pius XI begins a campaign of prayer against the religious persecution taking place in the Soviet Union. As a display of unity, similar services were also held in Catholic churches around the worldwide.

Karl Wilhelm Reinmuth discovers a main asteroid belt (1164 Kobolda) orbiting the sun every 4 years, from the Landessternwarte Heidelberg-Königstuhl Observatory at Heidelberg, Germany.

Births