The following lists events that happened during 1921 in New Zealand. Incumbents Regal and viceregal Head of State – George V Governor-General – John Jellicoe, Viscount Jellicoe Government The 20th New Zealand Parliament continues, with the Reform Party in Government Speaker of the House – Frederick Lang Prime Minister – William Massey Minister of Finance – William Massey Minister of External Affairs – Ernest Lee Parliamentary opposition Leader of the Opposition – Thomas Wilford (Liberal Party) Judiciary Chief Justice – Sir Robert Stout Main centre leaders Mayor of Auckland – James Gunson Mayor of Wellington – John Luke then Robert Wright Mayor of Christchurch – Henry Thacker Mayor of Dunedin – William Begg then James Douglas Events 31 January – The first scheduled air mail service in New Zealand commences, linking Christchurch with Ashburton and Timaru. 17 November – The first radio broadcast in New Zealand is made by Professor Robert Jack from the physics department of the University of Otago. Arts and literature See 1921 in art, 1921 in literature, :Category:1921 books Music See: 1921 in music Radio 17 November – Professor Robert Jack assembles a small transmitter at the University of Otago in Dunedin and broadcasts the first ever radio programme heard on New Zealand airwaves. The only known fact about the programme's content is that it included the then popular song "Hello My Dearie". See: Public broadcasting in New Zealand Film Beyond The Betrayer See: :Category:1921 film awards, 1921 in film, List of New Zealand feature films, Cinema of New Zealand, :Category:1921 films Sport Chess National champion – John Boyd Dunlop, of Dunedin (his first title) Cricket Plunket Shield Football Provincial league champions: Auckland – Northcote Canterbury – Corinthians Hawke's Bay – Waipukurau Nelson – Athletic Otago – HSOB Southland – Corinthians Wanganui – Eastown Workshops Wellington – Hospital Golf The 11th New Zealand Open championship is won by Ted Douglas (his fourth title) The 25th National Amateur Championships are held in Christchurch: Men – A.G. Sime (Greymouth) Women – G. Williams (her fourth title) Horse racing Harness racing New Zealand Trotting Cup – Reta Peter (2nd win) Auckland Trotting Cup – Man O' War (2nd win) Thoroughbred racing New Zealand Cup – Royal Star Auckland Cup – Malaga Wellington Cup – Maioha New Zealand Derby – Winning Hit Lawn bowls The national outdoor lawn bowls championships are held in Wellington. Men's singles champion – J.M. Brackenridge