So, here are (finally) the last numbers:
4) Galileo Galilei
Galileo Galilei was born on 15th February 1564 in Pisa, Italy. He was an Italian philosopher, mathematician, physicist and astronomer.
He believed in heliocentrism, which means that he believed that the sun is in the center of the universe and all other planets circle around it (today we know he was right about it) and was criticized for it. The church said, that the earth was in the center of the universe and all other planets (including the sun) moved around the earth. So there was a fight between Galilei and the church which resulted in Galileo being put under arrest by the church, accused of heresy. I think his case shows best the fight between science and church in former times.
5) Evariste Galois
Evariste Galois was born on 25th October 1811 in Bourg-la-Reine, France, and was a French mathematician. He died at the age of 20 but he made some of the greatest theorems in Algebra.
His most famous theorem showed that it was not possible to solve any of the three great problems of the antique, which where to construct with compass and ruler:
1) Squaring the circle - take a circle and construct a square with the same area.
2) Trisection of angles - take an angle and construct an angle which is only a third of it
3) Doubling the cube - take a cube and construct another cube with the doubled volume
Before Galois mathematician tried to do any of these but failed for centuries!
And then little Evariste Galois turned up and solved them all!
It is said that his manuscript got lost on it's way to a university a few times

Galois died in a duel, it is said because of girl.
His last words to his brother Alfred where "Don't cry, Alfred! I need all my courage to die at twenty".
A few years after his death the true value of his manuscripts was noticed - unfortunately Galois was dead. I think if he had lived, he would have had the chance to become one of the greatest mathematicians.
"Only the good die young" seems to be true.
6) Pythagoras
Pythagoras was born about 570 B.C in Metaponto, Italy (Greek colony) and was a Greek mathematician and philosopher.
I think most of you came across his theorem at school, where you can calculate the third side of a triangle if you have a right angle and the two other sides:
a^2 +b^2 = c^2
(a^2 means a-squared)
13) Leonhard Euler
Leonhard Euler was bron on 15th April 1707 in Basel, Switzerland, and was a swiss mathematician.
Most known is Euler's Number, 2.71828.....
I think some of you have been tortured with the exponential function f(x)=e^x in school

It's very useful for describing for example the increase of bacteria.
(I remember a test in school where we where to imagine a population of rabbits and it was asked weather the increase of rabbits was exponential or linear(this means the increasing rate is constant). My exact answer was "It's exponential, because more rabbits produce more baby-rabbits")
14) Carl Friedrich Gauß
Carl Friedrich Gauss was born on 30th April 1777 in Braunschweig, Germany, and was a German mathematician. He is one of the worlds most famous mathematician and probably the most famous German mathematician.
There is also a little story about him:
Gauss was said to have been a very talented child, he actually got bored in his math class and drove his teacher crazy with his questions. So his teacher wanted to play a game on him one day and keep him busy during the lesson. He asked him to add all the numbers from 1 to 100 and name him the sum.
Unfortunately it took only a few minutes for Gauss to reply - 5050.
He calculated like this:
I take 1 and 100, this makes 101. Then I take 2 and 99, this makes again 101. 3 and 98 is again 101. And so on... He figured out, that he could do this 50 times because 100 divided by 2 is 50 ( so he could make 50 pairs). So he just multiplied 101 by 50 and got the result!
(Later a generalized formula to do this addition was developed and named after him)
This meant that the poor teacher again had to face his questions

But he also noticed Gauss talent for mathematics and decided to promote him.
When Germany still had the DMark (before the Euro), Gauss image was on the 10-DMark note (todays value about 5 Euro, so you always had a Gauss in your pocket

)
16) Pafnuty Chebychev
Pafnuty Chebychev was born on 16th May 1821 in Okatovo, Russia and was a Russian mathematician. He did a lot of work in probability and statistics. The most funny thing is that no one seems to be sure about his name. In the last half year I came across
Tschebyscheff, Chebychev, Chebyshev, Tschebyschev, Tchebychev....
I think it the usual problem with Russian names, translating letters that don't exist in other languages is complicated. But I always thought that this guy is so famous, there must be a convention about his name!
And by the way, have you noticed his forename? ;-D
23) Ptolemy
Ptolemy was born in around years 90 in Egypt and was a Greek mathematician and astronomer.
He believed in the geocentric model, which means that the earth is in the center of the universe and all other planets move around it.
Due to him there where various spheres around the earth and all other planets and stars hung on those spheres. The moon for example hung on the sphere closest to the earth while Saturn was the most distant planet, therefore placed on the outer sphere. The sun was placed in one of the middle spheres.
This model is also named the Ptolemy system, where you can see how connected it is to Ptolemy.
It was not until 1600 that Copernicus came up with the heliocentric model, which we know is the true model.