During its decline, interest rates exploded in the complex Roman economy. They had centuries of borrowing and lending systems. Therefore they had to divide and multiply numbers easily and daily....
Almost every culture on Earth uses Arabic numerals (0 - 9). While in Cairo I noticed the plates on cars and buttons on phones, they are not Arabic numerals. I asked a driver, he laughed and said...
Scurvy and other diseases were avoided in the British Navy by carrying large supplies of limes for Vitimin 'C'...(Limeys). When crews spent long periods with Inuit (Eskimo) tribes, they quickly became...