- After the Plague (aftertheplague.org)
How do historical conditions influence our health? How does health change history? The After the Plague project investigates these questions by exploring health in later medieval England. It is centred on studying about 1000 medieval skeletons from the cemetery of the Hospital of St. John, Cambridge and from other medieval sites in Cambridge. The people we study date to between 1000 and 1500 CE.
- Pennsylvanian (geology) (Wikipedia)
The Pennsylvanian (/ˌpɛnsəlˈveɪni.ən/ pen-səl-VAYN-i-ən, also known as Upper Carboniferous or Late Carboniferous) is, on the ICS geologic timescale, the younger of two subperiods (or upper of two subsystems) of the Carboniferous Period. It lasted from roughly 323.2 million years ago to 298.9 million years ago. As with most other geochronologic units, the rock beds that define the Pennsylvanian are well identified, but the exact date of the start and end are uncertain by a few hundred thousand years. The Pennsylvanian is named after the U.S. state of Pennsylvania, where the coal-producing beds of this age are widespread.