By KD0034
• 3400 BCE

• 1000 BCE

First Fractions Are Used By Egyptians

Egyptians developed the first known use of fractions. They looked similar to our modern style of writing them, with one number over another, but their discovery was limited, as they could only use the number 1 in the numerator.
• 300 BCE

Zero Is First Used By Indian Mathematicians

Indian mathematicians developed the number zero as a placeholder, for when a "column" (e.g. tens column, hundreds column, etc.) has no value.
• 36 BCE

Mayans Develop Base 20 Counting System

Similar to how our culture counts using our fingers, Mayans counted using their fingers and toes. Thus, the Mayan counting system was base 20, rather than our base 10.
• 100

• 1100

Hindu-Arabic Numerals Are Introduced To Europe

Indian Mathematicians introduced the Hindu-Arabic numerals to European mathematicians, and Europe quickly adopted them as their own.
• Binary Code Invented By Leibniz

Leibniz invented binary code, which is a base 2 counting system.
Later in history, this system would become very important as computers began to be developed. Because the system only consists of ones and zeros, computers can read these as "on" or "off".