Global Contact
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.
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.
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.
Map with Many of the Protests in Puerto Rico and the World 2019
An event in Puerto Rico that captured world attention and motivated the interest of many Puerto Ricans in the diaspora to participate was the Summer of 2019 movement.
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
Adding and Subtracting 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.
Economic Diplomacy in the Caribbean Since the Second World War
Economic affairs are an essential part of world history and, even more so, in contemporary times after World War II, when globalization processes with higher levels of interdependency and proximity among individuals and countries are increasingly observed.
One Voice SOMOS Live! A Concert for Disaster Relief
Several Caribbean public figures (Puerto Rican artists Jennifer López and Marc Anthony and baseball player Alex Rodríguez) served as ambassadors of the Greater Caribbean before the world, to raise funds to address the immed
Solidarity Expressions from the Puerto Rican Diaspora
An event in Puerto Rico that captured world attention and motivated the interest of many Puerto Ricans in the diaspora to participate was the Summer of 2019 movement.
Brochure for the South Carolina Inter-State and West Indian Exposition / Charleston Exposition, 1901-1902
This is the cover for a pamphlet to promote the Charleston Exposition and recruit exhibitors and attendees from along the entire U.S. Atlantic, which ran from New England to Florida to Cuba and Puerto Rico.