Nanotechnology Day in the USA (National Nanotechnology Day)
Celebrated on 9 OctoberNanotechnology Day in the USA (National Nanotechnology Day)
Other holidays on 9 October
- World Post Day congratulations →
- Day of formation of the Special Fire Department of the Ministry of Emergency Situations of Russia
- Standing on a Bed of Nails Day
- Curious Events Day
- The day of the defeat of Nazi troops by Soviet troops in the Battle of the Caucasus (1943)
- According to the folk calendar - Ivan the Theologian
- Day of reflections in puddles
- Day of the Navy of Turkmenistan
- Columbus Day in the USA
- Thanksgiving Day in Canada
- Realtor Day in Ukraine
- Korean Alphabet Day in South Korea (Hangul Proclamation Day)
- National Dignity Day in Peru (Dia de la Dignidad Nacional)
- Moldy Cheese Day in the USA
- National Pro-Life Cupcake Day in the USA
- Holocaust Remembrance Day in Romania
- Health and Sports Day, Physical Education Day in Japan (Taiiku-no Hi)
- Day of glorification of St. Tikhon, Patriarch of Moscow and All Rus' (1989)
- Day of the repose of the Apostle and Evangelist John the Theologian