Billy watson
to separate the negative numbers and the positive numbers on a number line
John Wallis, who is also credited with several trigonometry contributions, invented the number line in 1695. By so doing, he helped people understand negative numbers better.
The number zero was the first "invented" number.
a guy invented the number one!
1765
Billy watson
to separate the negative numbers and the positive numbers on a number line
John Wallis, who is also credited with several trigonometry contributions, invented the number line in 1695. By so doing, he helped people understand negative numbers better.
The exact date is not known for when John Wallis invented the number line. It is known, however, that it was between the years of 1700 and 1703.
Some line dances were invented in the 1950's. But, most were invented in the 1970's.
Max Factor invented the first line of packaged cosmetics.
everyone add john on bbm 2945236E - he invented the fishing line
Alexis Marchand invented the party line. Patent was stolen by AT&T.
Henry Ford invented the assembly-line method of production
me
The plimsoll line was invented in the 19th centary by a british man named Samuel plimsoll