In 1985, M. Davis [3] gave the first explicit geometric construction of a closed hyperbolic 4-manifold by gluing together the opposite sides of a regular hyperbolic 120-cell P with dihedral angle 72°.

We notice what we notice and make it a thing distinguishing it from what else is within our view, partly because, doubtless, it is of such or such a size and shape: but we require more impulse to the notice and distinguishment than this furnishes.

The wave of attacks on the castellans in 1511 followed faction-fighting in Udine, in which castellans and their families were massacred by supporters of the Savorgnan.

https://babel.hathitrust.org/cgi/pt?id=mdp.39015077569393&view=1up&seq=6 page 4 [T]he larry had been filled to overflowing. When the controller was moved to the third point there was a jarring of the larry, which shook off more of the fine coal and created a dust cloud that enveloped the larry. This dust cloud was ignited by an arc at the wheels. The flame enveloped the larry and the operator, who was standing at the footboard at the controls. He received severe burns on the hands, forearms, face, and neck. […] page 5] Coal dust should be kept from tracks on which electric locomotives or slate larries travel.