| The current date is|
23 August 2017
- 12 January – The HMRD Cesidio Tallini becomes a City of New York Registered Marriage Officiant.
- 14 January – The HMRD Cesidio Tallini becomes a Baron of the Principality of Sealand.
- 30 January – The HMRD Cesidio Tallini receives a PhD in Cyberanthropology honoris causa from Cosmopolitan University & Research Institute.
- 30 January – The HMRD Cesidio Tallini receives a Citation for his PhD in Cyberanthropology honoris causa above from the Hon. Michael A. L. Balboni, former Senator for New York State's 7th Senate District.
- 3 March – Tallini founds the Micronational Professional Registry (MPR) and becomes its first Member.
- 31 March – Tallini founds the Fifth World Accreditation Agency (5WAA).
- 20 April – Cesidian calendar reform is completed with the Jeuday spelling suggestion by linguist Adalbert Kowal.