Euclid of Alexandria was born around the year 330? BC and died
around the year 275? BC. But nothing is certain, including the location of
his birth and exact nationality. He is thought to have been of Greek or
Alexandrian origin. He probably studied mathematics and philosophy in
Athens and made a living by tutoring others in mathematics. Euclid then
settled in Alexandria, a colony in Greece, and taught math at a university
that he was recognized as a scholar. His writing differed from other writers
of the time, in which he was more consistent and detailed, instead of just
blabbering about really nothing at all, which was very common back in
those days from the other writers. Euclid was a very uniform acting person,
unlike some of the other famous educational figures of the time, like
Einstein. He always preached that shortcuts in geometry were not an option.
He said that there has to be a complete job done and everything has to be
worked out until exceeding all possibilities.

Euclid’s contributions and accomplishments are plenty. He wrote the
very famous book The Elements, which might have easily been the most
famous and successful book of all time, besides the Bible. There is 13 books
of The Elements, with all 465 propositions from plane and solid geometry
as well as number theory. These very important books introduced such ideas
as points, distances, lines, surfaces (areas) and volumes. Also, the
definition, the axiom, or “self evident truths”. Euclid devised the theory of
that of the prime numbers, which is still very widely used. Plus, he was
noted for the other ideas to geometry. Such as “reductio ad absurdum”,
where it actually means the type of reasoning that can be applied to the
solution of different kinds of problems whether they deal with math or not.
Then there are the perfect numbers, which consist of a number in which the
sum of its aliquot(all the factors of the number including unity, but not the
number itself). And of course, there is the famous fifth, or parallel postulate
that one and only line can be drawn through a point parallel to a given line.

So as you can plainly see, Euclid was a prophet for new and idealistic
mathematical ideas to come. He built the first couple stepping stones that
launched a lot of the new ideas of today. He was most noted for his
organization of geometry into logical concepts than his own original
contributions, which is also very worthy of respect. Euclid was a highly
regarded mathematician with all the theorems and postulates to ever back up
any kind of deductive reasoning fight that would ever occur.