World Population Day was founded by the United Nations, and this holiday is    1    (annual) observed on July 11th.

The idea of World Population Day started in the late 1960s,    2    world leaders openly declared that adults have the right    3    (choose) whether they wanted children or not. This idea was also viewed as a human right. During this era, leaders were more open about    4    (discuss)child-bearing and the right women had to time their children    5    they wished. While this was just one of the    6    (sign) to the feminist movement in the US, this idea was new to many developing nations at the time.

In 1989, the world population quickly increased to five billion. During this same year, the United Nations founded World Population Day. Both events    7    (occur) on July 11th of that year.

World Population Day is celebrated in many ways‒‒much of this depends on the region. For participants who live in countries where gender    8    (equal) is a law, the holiday is meant to be     9    reflection and celebration of significant moments in history that helped society achieve this basic human right.

Every July 11th, the United Nations also has central celebrations in which all nations    10    (permit) to participate. In addition, the UN holds an annual theme.