Math in the Old Days
The Mayans were using this by the 4th century; the concept of that number didn’t make it to Europe until the 1200s or so
Zero
THIS MD-PENN BOUNDARY IS A GEOMETRIC TERM FOR A FINITE PORTION OF AN INFINITE STRAIGHT PATH
MASON-DIXON LINE
THIS OTHER NAME FOR MERCURY INCLUDES THE NAME OF A DIFFERENT ELEMENT
QUICKSILVER
An ancient Hindu text calculates the square root of this integer as 1.4142156 which is correct to 5 decimal places.
2
NELSON’S COLUMN SITE IN LONDON THAT IS 2 FOR 4 AND 3 FOR 9
TRAFALGAR SQUARE ROOT
ITS THE ONLY CHEMICAL ELEMENT NAMED FOR A STATE
CALIFORNIUM
The Babylonians used base 60, which would be counted on 5 fingers of one hand & the 12 of these on 4 fingers of the other.
The knuckles
WHEN PROFITS EQUAL LOSSES, THESE NON-ODD INTEGERS PLAY A PART
BREAKING EVEN NUMBERS
NAME ONE OF THE TWO CHEMICAL ELEMENTS WHOSE SYMBOL IS A PRONOUN
IODINE (I); HELIUM (HE)
Some think Ancient Egyptians represented fractions using symbols from the eye of this falcon god.
Horus
Their numerals weren’t handy for arithmetic, so ancient Romans did most of their calculating on this device.
An abacus