Number 10
The Meaning of Number 10
Number ten symbolizes the
completion of a cycle.
It is the number of heaven and
the world and universal creation.
Ten is the very first number that needs a separate part.
Number ten was the holiest of numbers according to the Pythagoreans. They took their oaths by number ten.
The first letter in the Greek word "deca" (ten) is formed like a triangle.
Pythagoreans used their sacred symbol of the tetraktys when swearing an oath.
It was common to use pebbles.The pebbles were arranged in a perfect triangle:
1+2+3+4 (=10), called the tetraktys.
The Greek word for pebbles, kalkuli, is the source of our word "calculate". 
Bowling pins are arranged in the same shape as the tetraktys: 1+2+3+4=10
Capricorn is the tenth astrological sign in the Zodiac.
(December 21st - January 20th)
In the Tarot ten is the card of the Wheel of Fortune.
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Ten is the highest score possible in Olympic competitions.
The top rim of the basketball goal is always 10 feet above the court.
Number 10 Downing Street is the residence and office of the Prime Minister of the United Kingdom, often referred to as "Number 10".
John Tyler was the tenth president of the United States. 1841- 1845. John Taylor was Vice President under President Harrison. Harrison died after 32 days and Taylor became the 10th President.
He owned slaves all his life. He was the first President to marry during his term in office.
He renamed his plantation “Sherwood Forest” because he felt like he was outlawed by the Whig Party.
John Tyler's signature
Virginia became the 10th state of the United States. (June 25, 1788)
There are ten letters on the Snellen Chart. The Snellen Chart was created by ophthalmologist Hermann Snellen (Dutch) in 1862. The ten letters are: 
| C | D | E | F | L | N | O | P | T | Z |
The length of your hand (if adult) is 1/10 of your total height.
The Ten Hour Clock - The Ten-Day Week
In "French Revolution Calendar" every month was divided into three ten-day weeks.
The tenth day was the day for rest. The extra five days needed for a full year, were added at the end of each year.
The weeks were called "decades".
Each day was divided into ten hours, each hour into 100 decimal minutes and each minute into 100 decimal seconds.
After 12 years of ten-day weeks, Napoleon put a stop to the "French Revolution Calendar" in 1806.
Neon has the atomic number 10.
Interstate 10 is a coast to coast highway in the United States. It goes from Florida to California.
Hildegard of Bingen – the tenth child and the tithe
Hildegard (1098- 1179) an abbess from Germany was a Christian mystic and visionary.
She was the tenth child. Her parents offered her as tithe (giving one tenth) to the church when she was eight years old. It was quite common to give the tenth child to the church.
Hildegard experienced many visions. She wrote books, poetry, music and songs. Hildegard was engaged in theology, science and healing.
It is well know that she had faith in medicinal herbs and healing crystal stones. Hildegard also wrote about women’s sexuality, as one of the first to do so.
The Ten Year Journey of Odysseus (Greek Myth) / Ulysses (Roman Myth)
"Ulysses and the Sirens" - 1891 Painter: John William Waterhouse
The War of Troy lasted ten years. Odysseus was a great hero in this war. After the fall of Troy, Odysseus started his journey back to Ithaca and his wife, Penelope.
He spent ten years on this journey back home. Odysseus and his men endured many hardships and adventures during those ten years. When Odysseus arrived home, he was the only survivor.
The dramatic story of Odysseus' ten year journey home can be read in the Greek epic poems, Odyssey, by Homer.