The definition of a graph is a diagram showing the relationships between two or more things. An example of graph is a pie chart. Graph is defined as to create a diagram that shows a relationship between two or more things. An example of graph is to create a series of bars on graphing paper.
President Abraham Lincoln - Slavery Abolished: On September 22, 1862 President Abraham Lincoln, United States of America, took the first step to abolish slavery Home President Abraham Lincoln - Slavery Abolished On Sept. 22, 1862, United States of America  issued the preliminary Emancipation Proclamation, declaring all slaves in rebel states should be free as of Jan. 1, 1863.
In 1783 Massachusetts freed all people from slavery and New Hampshire began a gradual abolition, as did Connecticut and Rhode Island the next year. In 1799 New York passed gradual abolition (it took until 1827). Ohio abolished slavery in 1802. New Jersey began abolition in 1804 and was not finished in 1865.