Here's a fun experiment you can do with your body without the need for any numbers!
On the first day of your next period start drawing notches on some object, say like a saber tooth tiger bone. Every day after that (every time you see the sun), you make a new notch. When you get your next period, you stop drawing notches on the bone and start a new bone.
You'll know when you will have to menstruate when the amount of notches on one bone matches the notches on the other! Yay ^_^
(ps if you haven't figured it out this was how women figured out their menstrual cycles before the invention of numbers)
What else did you learn today?


 
			
			 
					
						 
			 Women were the first mathematicians
 Women were the first mathematicians
					
				 
					
					
					
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			 Originally Posted by Tavrobel
 Originally Posted by Tavrobel
					




 
			 
			

 
			
 
						