History of chemistry 1808, certain of his central ideas were soon adopted by most chemists. However, uncertainty persisted for half a century about how atomic theory was to be configured and applied to concrete situations; chemists in different countries developed several different incompatible atomistic systems. A paper that suggested a way out of this difficult situation was published as early as 1811 by the Italian physicist Amedeo Avogadro (1776-1856), who hypothesized that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules, from which it followed that relative molecular weights of any two gases are the same as
Same-sex marriage law in the United States by state recognized under the laws of this State as if federal law recognized such marriages in the same manner as the laws of this State so that all marriages receive equal treatment. "§572 - 1 Requisites of valid marriage contract. In order to make valid the marriage contract, which shall be permitted between two individuals without regard to gender, it shall be necessary that: (1) The respective parties do not stand in relation to each other of ancestor and descendant of any degree whatsoever, two siblings of the half as well as to the whole blood, uncle and niece, uncle and