What Makes People from Different Parts of the World Have Different Skin Colors?
People noticed long ago that people from different parts of the world often had different skin colors. For example, people who liv
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Where Did Calendars Begin?
Early in history man began counting time by days, months and seasons and so had the beginnings of a calendar. When he studied the supposed m
What Was the Phoenix?
The phoenix was, according to legend, a bird which died in a fire but came out of the flames alive. In ancient Egypt the phoenix was connect
How Does the Moon Shine?
Even though the Moon is the brightest object in the night sky, it does not make its own light. The moon shines by the light it reflects from
When Is the Earth Nearest the Sun?
The Earth is nearest to the Sun on about the second or third day in January. The distance varies because the Earth spins round the Sun in an