Sources: WCAU
The International Mathematical Union awards the 2026 Fields Medals to Yu Deng, John Pardon, Jacob Tsimerman, and Hong Wang at the International Congress of Mathematicians in Philadelphia, Pennsylvania, United States. Wang becomes the third woman to receive the prize after Maryam Mirzakhani in 2014 and Maryna Viazovska in 2022. 2026-07-23
A section of Interstate 95 in Philadelphia, Pennsylvania, United States, collapses after a tanker truck catches fire under an overpass. 2023-06-11
Pennsylvania governor Tom Wolf announces a mask mandate for Pennsylvania schools and daycares. The mandate will take effect on September 7. 2021-08-31
Pennsylvania becomes the 10th U.S. state to reach President Joe Biden’s goal of vaccinating 70% of adults. 2021-05-26
Pennsylvania reports its first case of a new variant of SARS-CoV-2 in a resident of Dauphin County who traveled internationally. 2021-01-7
Pennsylvania reports a new single-day record of 6,339 new cases in the last 24 hours, bringing the total number of cases in the state to 281,852. 2020-11-18
Health Secretary Rachel Levine announces that out-of-state travelers will be required to either quarantine or present a negative COVID-19 test to enter the state. 2020-11-17
After 41 cases of COVID-19 are confirmed in Pennsylvania, Governor Tom Wolf orders all K–12 schools to close from March 16–29. 2020-03-13
Ten people are injured in a shooting at a Philadelphia, Pennsylvania block party. 2015-06-21
A shooting spree kills six people throughout Montgomery County in the Philadelphia, Pennsylvania suburbs. The suspect, Bradley William Stone, remains at large. 2014-12-15