Astronomy Day in Armenia
Celebrated on 18 SeptemberAstronomy Day in Armenia
Other holidays on 18 September
- World Water Monitoring Day
- Day of Remembrance for Fallen Motorcyclists
- World Bamboo Day
- International Read an eBook Day
- Birthday of the Soviet Guard
- Tail Soak Day
- Japan's Elderly Day (Keiro-no Hi)
- Fast of Gedaliah in Judaism (Tzom Gedaliah)
- National Music Day in Azerbaijan (Milli Musiqi Gunu)
- Mulled Wine Spice Smells Day
- According to the folk calendar - Zachary and Elizabeth
- Memorial Day of the Venerable Martyr Athanasius of Brest
- Day of the Prophet Zechariah and Righteous Elizabeth, parents of Saint John the Baptist