That is an important theorem in geometry: if two lines intersect to form adjacent congruent angles, then the lines are perpendicular. Those congruent angles would be right angâ¦les.
Williams later became chief surgeon of the Freedmenâs Hospital. Daniel Hale Williams III was born on January 18, 1856, in Hollidaysburg, Pennsylvania, to Sarah Price Williams and Daniel Hale Williams II. The couple had several children, with the elder Daniel H. Williams inheriting a barber business.
Daniel Boone was born November 2, 1734, in Berks County, Pennsylvania. Sometimes, an alternate birth date is listed because the Boone family used an outdated calendar system and recorded Danielâs birth on October 22. Daniel was the sixth of eleven children born to Squire and Sarah Boone, both Quakers.