[U.S.-Africa Bridge Building Project] Of all the transnational movements first identified with the prefix "pan" in the late 19th and early 20th century, the Pan-African movement has been the one with the greatest impact and the greatest staying power. While the term dates to the Pan-African Conference of 1900 in London, the history it represents dates back to the slave trade and the global racial order established more than 500 years ago.