Inventor's Day in Argentina (Dia del Inventor)
Celebrated on 29 SeptemberInventor's Day in Argentina (Dia del Inventor)
Other holidays on 29 September
- World Heart Day
- Otolaryngologist Day in Russia
- Autumn Solitude Day
- Birthday of the rock group "Chaif"
- International Day of Awareness on Food Loss and Waste Reduction
- Zhongqiu in China (Zhongqiu Jie, Moon and Harvest Festival)
- Catholic Saint Michael's Day (Feast of Saint Archangel Michael)
- According to the folk calendar - Efimiya, Bird's bone
- Glorification of Blessed Fernando in Portugal
- National Coffee Day
- Happy Goose Day in the USA
- National Poisoned Blackberries Day in the USA
- Firefighter's Day in Iran
- Victory Day at the Battle of Boqueron in Paraguay (Victoria de Boqueron)
- Feast of the Icon of the Mother of God “The Sign” Kamenskaya
- Feast of the Icon of the Mother of God “Look at Humility”
- Memorial Day of the Holy Great Martyr Euphemia All-Praised
- Memorial Day of St. Cyprian of Moscow