1313 BCE (1 Iyar 2448) FIRST JEWISH POPULATION SURVEY
According to tradition, this was the date of the first populationrnsurvey of the Israelite people taken by Moses.
1543 - 1620 (1 Iyar 5380) HAYIM VITAL (Damascus, Syria - Safed, Eretz Israel)
A pupil of the Ari, he was respected both in and out of Eretz Israel. Vital was the author of many Kabbalist, talmudic and Biblical works including Etz Chaim (Tree of Life) on Lurian Kabbalah, and Lekutai Torah (Gleanings of Torah). He had sole possession of the Ari's writings, and most of our knowledge of the Ari's life and teachings are from Vital.
1871 April 16, NORTH GERMAN CONFEDERATION (Germany)
Extended the constitution over the entire federation. This ostensibly removed all limitations on civic and citizens rights.