Hypatia
2 of the 7 encyclopedias on this shelf carry an entry for Hypatia. Both are reproduced below, so you can see where they agree and where they differ.
Collier's New Encyclopedia (1921)
an Alexandrian teacher and heroine; born in Alexandria between 370-380. She was the daughter of Theon, an eminent mathematician of Alexandria, whom she succeeded in the government of that school. Orestes, the governor of Alexandria, had a high respect for Hypatia, and freently consulted her on matters of imquently portance. Between the governor and the patriarch Cyril there was bitter enmity, which broke out into open war, and the monks siding with their chief, HYPERÆMIA assembled in a riotous manner against Orestes, who was obliged to fly from the city. They then seized Hypatia, and having torn her in pieces, burnt her mangled limbs to ashes, 415 A. D. HYPERÆMIA (hi-per-e-mē-ä), a plethora or fullness of blood. The whole mass of the blood is increased to a variable extent. The face is full and turgid, with a purplish tinge. There is a tendency to lassitude and sleep. Called also polyæmia. (hi-per-es-the- HYPERÆSTHESIA zē-ä), an excessive excitability of the parts of the nervous apparatus which have to do with sensation, special or common. Abnormal sensibility to pain is, however, more correctly called "hyperalgesia." In this condition, as in ticdouloureux, the slightest stimulus may cause a paroxysm of pain, even a current of air or a noise bringing on an attack; while in hyperæsthesia of the special senses bright flashes of light may be seen, sounds may be heard, and even smells and tastes experienced in the absence of any objective cause. HYPERBOLA (hi-per'bō-lä), in mathematics, one of the three conic sections. It is a plane curve of such a form that if from any point in it two straight lines be drawn to two given fixed points, the excess of the straight line drawn to one of the points above the other will always be equal. The two points are called the foci. Other terms used of the hyperbola are abscissæ, parameter, latus rectum, directrix, and a term peculiar to it, asymptotes.
Aiton's Encyclopedia (1910)
hi-pa'shi-a, a Greek woman philosopher. She was born in Alexandria about 350 A. D. She became an instructor in the great school there, and is said to have possessed eloquence, as well as rare modesty and beauty. Her classroom was crowded with students over whom her lectures had great influence. In the factions that arose among the early Christians of Alexandria, she became the victim of a fanatical mob of monks. She was torn from her chariot, dragged to a Christian church, stripped, cut to pieces with oyster shells, and burned piecemeal. Charles Kingsley has made her the heroine of a historical novel, Hypatia.