Earth

Earth's rotation period is 24 hours long, or 1 day
It's revolution period is 365 days long
Is 149.6 million km away from the Sun
Only has one satellite, the Moon

Earth is the only planet to not be named after a god
It has only one natural satellite, the Moon
Earth was once believed to the center of the universe

http://www.universetoday.com/14491/why-does-the-earth-rotate/