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Arthur Cayley

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Arthur Cayley was a brilliant mathematician from England.

He was born on August 16, 1821, in Richmond, London. His early years were spent in Saint Petersburg, Russia. His father, Henry Cayley, worked as a merchant there. Eventually, the family moved back to Blackheath, London. At age 14, Cayley attended King's College School. His teachers noticed he was a math genius. They suggested he study at the University of Cambridge. This choice changed his life forever.

Cayley studied many subjects at Trinity College. He was great at math and several languages. He learned Greek, French, German, and Italian. He won the top prize called Senior Wrangler. He also won the first Smith's prize. Cayley eventually became a lawyer in London. He worked in law for many years. However, his heart always belonged to math. In 1860, he became the first Sadleirian professor. He gave up a high-paying law job for this role. He wanted to teach pure mathematics.

He did amazing work in many areas. Cayley studied algebra and how it works. He helped define the idea of an abstract group. This is a set of things with specific rules. He also worked on matrices, which are grids of numbers. He found the Cayley-Hamilton theorem about these matrices. Cayley and a man named Salmon found 27 lines on a cubic surface. He also used math to count different types of trees. His work helped create the modern British school of math.

Cayley was a very busy and productive man. He wrote between two and three hundred papers. He even edited seven volumes of his own collected papers. In 1883, he was the President of the British Association for the Advancement of Science. He traveled to Baltimore to give lectures in 1882. He also helped women get better educations at Cambridge. He supported Girton and Newnham colleges. These were the first women's colleges there. He cared deeply about helping others learn.

Many things are named after him today. You might hear about Cayley graphs or Cayley tables. There is even a crater on the Moon named Cayley. His math ideas are still used in many papers today. Cayley lived a happy life with a loving family. He loved to read novels and travel. He also enjoyed painting with water colors. He used these paintings to help draw math diagrams. He died on January 26, 1895, at age 73.

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