| | 1st week | 2nd week | 3rd week | 4th week | 5th week |
| 2019. | 2019 is the 150th anniversary since Dmitry Mendeleev discovered the Periodic System and has been proclaimed the "International Year of the Periodic Table of Chemical Elements" more |
| SEPTEMBER | | 13th - NOVsky - Art&Science festival in Novska (Croatia) more | 16th - World Ozone Day more 22nd - World Car Free Day more 23rd - Autumn equinox - Eratosthenes measurements | 26th - European Language Day more 27th - European Researchers' Day more | |
| OCTOBER | 4th - World Multiplication Table Day more | 4th-10th - World Space Week more 8th - Ada Lovelace Day more 13th - International Day for disaster risk reduction more | 10th-17th - Global Math Week more 15th - World Maths Day more
16th - World Food Day more 20th-European Statistics Day more | 21st - Workshops ... Discover the Universe more 21st - Apple Day more 21 st- Celebration of Mind Day (aka Hexaflexagon Day) more | |
| NOVEMBER | 5th - World Tsunami Awareness Day more | 10th-World Science Day for Peace and Development more ... 11th - Origami Day more | 18th - European Antibiotic Awareness Day more | 23 rd- Fibonacci day more | |
| DECEMBER | 1st - World AIDS Day more 5th - The Evening of Mathematics (CROATIA) more 5th - World Soil Day more | 9th-15th December 2019 Hour of Code more | | | |
| 2020 | |
 In December 2018, the United Nations General Assembly declared 2020 as the International Year of Plant Health (IYPH). The year is a once in a lifetime opportunity to raise global awareness on how protecting plant health can help end hunger, reduce poverty, protect the environment, and boost economic development. |
| JANUARY | | | 15th - Sofya Kovalevskaya Day (170th birth anniversary) more and more | 24th - International Day of Education more | |
| FEBRUARY | | 11th - Safer Internet Day more 11th-Inernational Day of Women and Girls in Science more 12th - Darwin Day more | | 26th - Pink Shirt Day more 27th - Number e Day (e ~ 2.72) | |
| MARCH | 4th - 6th - World Sustainable Energy Days more 8th - International Women Day | 12th - World Maths Day more 14th - PI Day more | 20th - Spring equinox - Eratosthenes measurements 21st - International Day of Forests more 21st- World Down Syndrome Day (WDSD) more 22nd - World Water Day more | 23rd - World Meteorological Day more 23rd - 27th - STEM week (OŠ Josipa Kozarca, Lipovljani) 27th - STEM Night (High School Novska) | |
| APRIL | 3rd - visit to PMF - Faculty of Math and Natural Sciences in ZG/CRO | 7th - World Health Day more | 17th - World Haemophilia Day more | 22nd - International Mother Earth Day more 23 rd - Girls in ICT Day more 25th - International DNA Day more
26th - International Chernobyl Disaster Rememberance Day
more (World Day of Renewable Energy?) | |
| MAY | 2nd - International Astronomy Day more | | 16th- International Day of Light more | 22nd - International Day of Biological Diversity more | |
| JUN | 5th - World Environment Day more | | 19th - Blaise Pascals' Day (final activity for this project - could be done earlier) | | |
| JULY | | | | | |
| AUGUST | | | | | |