Voter registration. To vote in Arizona, one must be a citizen of the United States and a resident of an Arizona county. A voter must be 18 years or older on or before Election Day. To be eligible to vote in an election one must register at least 29 days prior to the election.
During 1811 Amedeo Avogadro ‘s hypothesis that at the same pressure and temperature equal volumes of all gases carries equalnumbers of molecules. It also distinguished that the accurate interpretation in the reaction of hydrogen with oxygen to create water, he explained the reaction showing what happens on an atomic and molecular scale using the theory of Dalton.
Why did the south pass Slave codes ?
Since the colonial period, colonies and states had passed laws that discriminated against free Blacks. In the South, these were generally included in "slave codes"; the goal was to reduce the influence of free blacks (particularly after slave rebellions) because of their potential influence on slaves.
