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Global Contact

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.

A world map with orange markers placed at the site of protests from social media.
Source

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.

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

A green background with counters on a counting board.
Source

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. 

A table with popular world development indicators for four Caribbean countries dating from 1972, 1980, 1990, 2000, 2010, and 2020.
Teaching

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.

An image of sound waves with the text "play audio" under.
Source

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

A screenshot of a Facebook post in Spanish with multiple images of people fro
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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 Cover reads "South Carolina Inter-State and West Indian Exposition" and shows map of southeast U.S. coast.
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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.

Remains of the Stargate Canoe
Source

Remains of the Stargate Canoe

This image showcases one of the few remains of a canoe found in the Caribbean. The ‘Stargate’ canoe, found in a blue hole—a large marine cavern--on the island of South San Andros in the Bahamas, represents only the tip of the canoe.