Browse

Trade

The edge of a counter with a man's shoulder and lettering in detail.
Source

Early Modern Counter

An early modern counter of the "Reichenmaster" style, with one side showing a picture of a man using a counting board and the other side showing the alphabet. These counters were used in classrooms to teach students both to read and perform basic arithmetic.

A woven textile with A closeup of a woven textile featuring a figure that may be a human-animal hybrid. He wears red and blue clothing, dark colored sandals, and has a golden-colored headpiece.
Source

Coca Bag

This coca bag is from the Moche culture that existed in Peru between the period of 100 to 700 AD. The Moche are known for their ceramics, textiles, and metalworking practices, and this bag demonstrates the skill of Moche weavers.

A sandstone featuring Meroitic hieroglyphs in three columns.
Source

Meroitic Script

The Meroitic Script was used in the Kingdom of Kush beginning in the 3rd Century BCE, or the Meroitic Period, and had two forms, Meroitic Cursive and Meroitic hieroglyphs.

A green background with counters on a counting board and pen and paper math.
Source

Division with an Early Modern Counting Board

Before the rise of literacy rates, counting boards such as the one featured in the video were the most common way to perform arithmetic. After pen-and-paper arithmetic replaced counting boards, Arabic numerals also became dominant throughout Europe. 

A green background with counters on a counter board.
Source

Multiplication with an Early Modern Counting Board

Before the rise of literacy rates, counting boards such as the one featured in the video were the most common way to perform arithmetic. After pen-and-paper arithmetic replaced counting boards, Arabic numerals also became dominant throughout Europe. 

A man sits in front of a counting board with a pile of counters in front of him and a counter in one hand.
Source

Engraving of a Rechentisch (Counting Board)

This image of an engraving depicts a man using a rechentisch, or counting board, the earliest known counting device and a precursor the abacus. The earliest known counting board is the Salamis Tablet, dating from 300 BCE, but may have been used more for gaming than for calculating.

The well-known portrait vessel called Huaco Retrato Mochica, which depicts a man's head wearing a turban with red detailing and a two headed bird on either side.
Source

Moche Portrait Vessels

Moche portrait vessels are ceramic vessels that often featured only heads, but some also have full human bodies as well, and most are representations of adult men.

A light colored, rectangular bead with small, stripe-like markings.
Source

Shell Pendant or Bead from Ecuador

This pendant or bead was made from a shell and dates back to the 3rd millennium BCE. Found in Ecuador, it was likely made by the Valdivia culture, a people who lived on the western coast and mainly subsisted off fishing and farming and flourished between the years of 3500 BCE - 1500 BCE.

Three reddish-brown fragments of potter featuring a human face and geographic patterns.
Source

Lapita Pottery from the Santa Cruz Islands

This pottery sherd dates from around 1000 BCE and is from the Lapita culture, the likely common ancestor of contemporary Polynesian cultures. This sherd was found in the Santa Cruz Islands, part of the Solomon Islands.

A green background with counters on a counting board.
Methods

History of Pre-Modern Math

Before the widespread adoption of Arabic numerals, medieval and early modern Europeans added, subtracted, multiplied, and divided using a type of abacus known as a counting board and only afterwards recorded the results of their ca