History of Number Systems Investigation - some links

Where to begin when looking for information on different number systems?

You could ask your parents - maybe they know about a cool system for numbers and counting. 

You could ask your librarian - there are books about mathematics!

There are some sites online too. Ms. O'Hara and I have found some sites to share with you.
If you search, use good search terms. One of my favourites is "for kids". I use this in almost every search I do (:

Binary at mathisfun http://www.mathsisfun.com/binary-number-system.html
Counting on your fingers with binary http://www.mathsisfun.com/numbers/binary-count-fingers.html

Roman Numerals http://www.ducksters.com/kidsmath/roman_numerals.php

Archimedes Lab http://www.archimedes-lab.org/numeral.html

Numberphile is a wonderful Youtube channel

This one has a long list of number systems and labels their complexity or simplicity with happy and not so happy faces.   http://gwydir.demon.co.uk/jo/numbers/comparison.htm  

Another page on this site is http://gwydir.demon.co.uk/jo/numbers/index.htm with a few famous number systems.

This is a bit more ‘wordy’: http://www.math.wichita.edu/history/topics/num-sys.html

This site had some interesting facts, but it might be a little challenging with its sophisticated matheamatical language http://mentalfloss.com/article/31879/12-mind-blowing-number-systems-other-languages