Extras from the lecture

Lecture 1

Here's a biography of Pascal from the Pascal's triangle.

And here's a very nice video from numberphile on Pascal's triangle showing connections with Sierpinski triangle and Fibonacci numbers!!

Lecture 2

Here's a numberphile video on the seven bridges of Königsberg. Here's a wikipedia article on the same.

And here's a biography of Leonhard Euler, and here's what wikipedia has to say about him.