John L Esposito, a leading scholar of religion and international affairs at Georgetown University, died on July 15, 2026, due to complications from heart surgery. Born in 1940 into a working-class Italian-American family in Brooklyn, New York, Esposito initially aspired to become a Catholic priest and joined the Capuchin Franciscan Order before choosing to pursue graduate studies instead.

Esposito was a towering intellectual figure who published over 55 books, primarily with Oxford University Press, many of which have been translated into dozens of languages. His scholarship uniquely shaped the modern study of Islam and Muslim societies, especially in the context of Islam-West relations during critical periods such as the aftermath of the 1979 Iranian revolution and the events following 9/11.

Following the 1979 Islamic revolution in Iran, Western interest in the intersection of Islam and politics surged. Esposito challenged prevailing Orientalist orthodoxies that often reinforced Western biases about Islam and Muslims, reshaping academic and public discourse on the subject.

His worldview was influenced by his devout Catholic mother and his father's dedication to social justice. Despite concerns from family and friends about his career prospects, Esposito's work gained wide recognition and significantly contributed to global understanding of Islamic societies.

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