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.
From Wikipedia, the free encyclopedia. For other people named Jack Daniel, see Jack Daniel (disambiguation). Jasper Newton Jack Daniel (c. January 1849 â October 10, 1911) was an American distiller and businessman, best known as the founder of the Jack Daniel's Tennessee whiskey distillery. Daniel was the youngest of ten children born to Calaway and Lucinda Matilda (nÃ©e Cook) Daniel.