International Women's Day first emerged from the activities of labour movements at the turn of the twentieth century in North America and across Europe. Since those early years, International Women's Day has assumed a new global dimension for women in developed and developing countries alike.
The shadowed portion is entirely hidden from view. The first quarter and third quarter moons (both often called a half moon), happen when the moon is at a 90 degree angle with respect to the earth and sun. So we are seeing exactly half of the moon illuminated and half in shadow.
Saturn and its rings, seen from its shadow by the Cassini spacecraft. In this exaggerated-color image the night side of the planet is lit by light reflected from its rings, while that portion of the rings in the shadow of the planet blocks portions of that reflected light, appearing as darker bands.