International Day of Climate Action
International Day of Climate Action is held on October 24. This event in the third decade of the month october is annual.
World Ballet Day on October 23 (is an annual celebration of ballet held since 2014 in the first week of October);
World Champagne Day on October 23 (Celebrated on the penultimate Friday of October);
World Opera Day on October 25 (officially is celebrated since 2019)