ECU Libraries Catalog
- 1719 to 1724 11,052
- 1725 to 1749 46,726
- 1750 to 1774 68,490
- 1775 to 1799 130,108
- 1800 to 1824 106,191
- 1825 to 1849 46,975
- 1850 to 1874 52,199
- 1875 to 1899 39,992
- 1900 to 1924 80,168
- 1925 to 1949 86,916
- 1950 to 1974 240,481
- 1975 to 1999 656,012
- 2000 to 2005 277,573