The standard definition of normal visual acuity (20/20 or 6/6 vision) is the ability to resolve a spatial pattern separated by a visual angle of one minute of arc. The terms 20/20 and 6/6 are derived from standardized sized objects that can be seen by a person of normal vision at the specified distance. For example, if one can see at a distance of 20 ft an object that normally can be seen at 20 ft, then one has 20/20 vision. If one can see at 20 ft what a normal person can see at 40 ft, then one has 20/40 vision.
Constitutional amendments adopted during Reconstruction were intended to-provide legal and political rights for African Americans-end property and religious qualifications for voting-correct problems with the electoral college system-limit the number of terms of the president.
Founding group. The NAACP was formed partly in response to the continuing horrific practice of lynching and the 1908 race riot in Springfield, the capital of Illinois and resting place of President Abraham Lincoln.he NAACP's principal objective is to ensure the political, educational, social and economic equality of minority group citizens of United States and eliminate race prejudice. The NAACP seeks to remove all barriers of racial discrimination through the democratic processes.