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.
These three amendments worked together to provide former slaves with equality and freedom thus changing the course of history forever. During its time, the main purpose of the 14th Amendment was to ensure that the Civil Rights Act passed in 1866 was upheld.