Immanuel Wallerstein was a renowned American sociologist and economic historian, celebrated for his profound analysis of the modern world-system. Born in 1930 in New York City, Wallerstein’s academic journey led him to Columbia University, where he earned his Ph.D. He gained international acclaim for his pioneering work, "The Modern World-System," which offered a groundbreaking perspective on global capitalism and its historical development. Wallerstein's scholarship emphasized the interconnectedness of societies and the impact of economic relationships across centuries. As a prolific author and influential thinker, he left a lasting legacy in sociology and political economy until his passing in 2019.