Thailand Holidays - National Science Day
Celebrated on 18 AugustThailand Holidays - National Science Day
Other holidays on 18 August
- Russian Holidays - Geographer's Day
- Funny Holidays - Never Give Up Day
- Funny holidays - Common Language Day
- Funny Holidays - Serendipity Day
- Fun Holidays - Helium Discovery Day
- Bulgarian Holidays - Paneurhythmy Dance Festival
- Holidays of Tajikistan - Day of Medical Workers
- Holidays of Kazakhstan - Border Troops Day
- According to the folk calendar - Evstignei Zhitnik
- Forefeast of the Transfiguration of the Lord
- Memorial Day of the Venerable Martyr Job of Ushchelsky
- Memorial Day of the Hieromartyr Simon of Ufa