- 1977: Italian Ratification of the Convention on the Protection of the Cultural and Natural World Heritage (1972).
- 1987: Inscription of the Site of the Site on the World Heritage List.
- 2005: World Heritage Committee requires to all sites to adopt a management plan-system.
- 2006: MiBACT approves Law n. 77 financial support measures to Italian World Heritage Sites.
- 2007: Agreement between the authorities responsible of the Site and the City of Venice as site manager.
- 2010: Thematic consultations for the definition of the themes and projects of the Management Plan.
- 2012: Approval of the Management Plan
- 2015: Implementation of the Management Plan.