| 1778 | Foundation of the Königliche Roß-Arzney-Schule on instruction of George III, King of Great Britain and Elector of Hanover at the Clever Tor outside the city walls of Hannover; First teacher: Oberhof horse doctor Johann Adam Kersting |
| 1887 | Elevation of the Royal Veterinary School in Hannover to the University of Veterinary Medicine Hannover |
| 1899 | Transfer of the university from the Clever Tor to the Braunschweiger Platz location |
| 1903 | High school graduate is required to begin studies at the University of Veterinary Medicine Hannover |
| 1910 | The TiHo receives the right to award doctorates |
| 1913 | Introduction of the rectorate constitution |
| 1918 | The TiHo receives the right to award post-doctoral degrees |
| 1926 | Expansion of the grounds at Bischofsholer Damm |
| 1926 | Purchase of the Adendorf manor near Lüneburg as teaching manor |
| 1938 | Foundation of the School of Veterinary Medical Technical Assistants |
| 1953 | Purchase of the Westfalenhofs at the Bünteweg in Kirchrode |
| 1961 | Exchange of the Adendorf manor for the former Ruthe domain at Sarstedt as teaching and research estate |
| 1969 | For the first time in Germany: establishment of biennial postgraduate study |
| 1974 | The EU reference laboratory is located at the TiHo |
| 1974 | Establishment of the WHO center "Veterinary Public Health", an institution of the World Health Organization (WHO) |
| 1991 | Foundation of the branch for epidemiology in Bakum |
| 1998 | The TiHo is the first German university to introduce a PhD program Introduction of the presidential constitution |
| 2002 | Introduction of the presidential constitution |
| 2003 | Transformation of the university into the legal status of a foundation under public law |
| 2003 | 225th anniversary celebration |
| 2003 | Introduction of the PhD program "Neuroscience Systems" |
| 2004 | Introduction of the Bachelor’s program in Biology |
| 2006 | Introduction of the Master’s program "Animal Biology and Biomedical Sciences" |
| 2009 | Move into the clinic at the Bünteweg |
| 2010 | Opening of the Caballus mensa at the Bischofsholer Damm campus |
| 2011 | Introduction of the PhD program "Animal and Zoonotic Infections" |
| 2011 | Foundation of the Institute for Terrestrial and Aquatic Wildlife Research with a branch in Büsum |
