1977 The 3rd Anniversary of the International Congress of Odontology

1977 The 3rd Anniversary of the International Congress of Odontology 1977 The 50th Anniversary of the Brazilian Grand Masonic Lodge 1977 Day of the Stamp 1977 The 150th Anniversary of Juridical Courses 1977 Occupations 1977 Folklore 1977 Brazilian Colonial Coins 1977 National Day 1977 Nature Conservation 1977 The 150th Anniversary of the Official Elementary Schooling 1977 The 150th Anniversary of National Observatory 1977 Aviation Anniversaries 1977 Day of the Book and Jose de Alencar Commemoration 1977 Amateur Radio Operators’ Day 1977 Christmas 1977 International Thematic Stamp Exhibition “Portucale 77” – Porto, Portugal – Gemstones 1977 Thanksgiving Day 1977 National Integration 1977 The 50th Anniversary of the Varig State Airline 1977 Regional Architecture, Churches 1977 The Day for Diplomats 1978 The 200th Anniversary of the La Scala Opera House, Milan, and Carlos Gomes Commemoration 1978 Football World Cup – Argentina 1978 Postal Staff College 1978 Occupations 1978 World Hypertension Month 1978 World Telecommunications Day 1978 Birds 1978 The 85th Anniversary of the Union Court of Audit