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.
The moon's motion through our sky is similar to that of the sun, but different: 1  Like the sun, the moon rises in the east and sets in the west (with some exceptions for observers in earth's extreme northern and southern regions). 2  Like the sun, the moon doesn't move across our sky quite as fast as the stars do. Third, when the moon is in its crescent phase and the sky is sufficiently dark, you can sometimes make out the rest of the moon's dimly lit disk. 2  This tells us that the moon isn't really changing shape; part of it is merely much brighter than the rest.