thumb|Flag of Djibouti June 5 – A bloodless coup installs France-Albert René as President of the Seychelles. June 15 – Spain has its first democratic elections, after 41 years of Francoist Spain. June 21 – Bülent Ecevit, of CHP forms the new government of Turkey (40th government since the founding of the Turkish republic, but fails to receive the vote of confidence). June 25 – The 1977 Rugby League World Cup culminates in Australia's 13–12 victory over Great Britain at the Sydney Cricket Ground before about 24,450 spectators. June 27 Djibouti receives its independence from France. Constitution for the Federation of Earth is adopted by the second session of the World Constituent Assembly, held at Innsbruck, Austria. June 30 – The Southeast Asia Treaty Organization is permanently disbanded.
thumb|Flag of Djibouti June 5 – A bloodless coup installs France-Albert René as President of the Seychelles June 15 – Spain has its first democratic elections after 41 years of Francoist Spain June 21 – Bülent Ecevit of CHP forms the new government of Turkey (40th government since the founding of the Turkish republic but fails to receive the vote of confidence) June 25 – The 1977 Rugby League World Cup culminates in Australia's 13–12 victory over Great Britain at the Sydney Cricket Ground before about 24450 spectators June 27 Djibouti receives its independence from France Constitution for the Federation of Earth is adopted by the second session of the World Constituent Assembly held at Innsbruck Austria June 30 – The Southeast Asia Treaty Organization is permanently disbanded