Shortest convention - 6 hours in Baltimore in 1872
Longest convention - 17 days in 1924
Youngest nominee - William Jennings Bryan was 36 when nominated in 1896
First African American to get delegate vote - Frederick Douglass got 1 vote in 1888.
First Democratic convention - 1832 nominated Andrew Jackson for his second term
City with most conventions - Chicago, 25 in all.