Document status: incomplete. Quartz is a term that includes both well crystallized and compact forms of silica. For the most time the different quartz varieties have been considered as species of their own and have not been systematically grouped together before the 19th century.
Samuel Ullman (born April 13, 1840 in Hechingen, Germany; died March 21, 1924 in Birmingham) was a hardware dealer, a long-time member of the Birmingham Board of Education, a lay leader at Temple Emanu-El, and a writer whose poem, Youth, is celebrated worldwide.
Samuel Sam Gompers[1] (January 27, 1850 â December 13, 1924) was an English-born, American labor union leader and a key figure in American labor history. Gompers founded the American Federation of Labor (AFL), and served as the organization's president from 1886 to 1894 and from 1895 until his death in 1924.