| 1. Yahya Sinwar's family was displaced during the 1948 Arab-Israeli War and took refuge in Gaza. |
| 2. He became involved with Hamas while growing up in a refugee camp. |
| 3. After his first arrest in 1982, he connected with fellow Palestinian activists. |
| 4. Sinwar co-founded Majd, identifying Palestinians who collaborated with Israel, which later became Hamas's police. |
| 5. He earned a notorious reputation for his violent actions against suspected collaborators. |
| 6. While imprisoned, he attempted to escape multiple times and was suspected of orchestrating beheadings. |
| 7. His time in prison changed his perspective and allowed him to develop leadership skills. |
| 8. He studied Hebrew and translated materials related to Israeli history and counterterrorism. |
| 9. Yahya Sinwar took 15 courses through the Open University of Israel during his imprisonment. |
| 10. He played a crucial role in negotiating the release of Israeli soldier Gilad Shalit. |
| 11. Sinwar’s influence within Hamas fluctuated, marked by significant negotiations and tensions with leadership. |
| 12. He earned the nickname 'The Butcher of Khan Younis' for his violent actions against suspected collaborators, allegedly using a razor blade and machete |
| 13. After his release from prison, he pursued a pragmatic approach toward dealmaking that began to reverse Hamas's isolation |
| 14. In 2017, months after becoming leader, Hamas forged a reconciliation deal with the Palestinian Authority |
| 15. The United States designated him as a specially designated global terrorist in 2015 |
| 16. He was one of the masterminds behind Hamas's October 7, 2023 attack on Israel alongside Mohammed Deif |
