“Goeie Mie” is the nickname of Maria Catharina Swanenburg. Goeie Mie died in 1915 but is known as the most prolific poisoner in the world. Historians suspect she killed over 90 people, and she might be the most infamous serial killer of the Netherlands. She was born and raised in Leiden, and killed family members and non-family members alike. Why did she do what she did? That’s unfortunately largely unknown. The papers that documented Goeie Mie’s trial did not come out of WW2 unscathed. All we know is that she did not have any regrets.
Exhibition: Everything Under Control
TROEF is the place were Stichting ROEM displays artwork. From the 16th of September onwards, there will be a new exhibition named "Everythi...
- RIjksmuseum Boerhaave
Lectures: People in the Machine
In the news you often hear about artificial intelligence that does things all by itself. Because of that most people, including scientists, ...
Exhibition LUMC: The road to the beginning
This exhibition was made in collaboration with prof. dr. Ewine van Dishoeck and prof. dr. Vincent Icke, and explores the James Webb telescop...
- Oude Sterrewacht
Starting on the 2nd of July, you can view a new exhibition at the Leiden Observatory: More-than-Planet. How do we imagine our planet?
Colouring Page Hercules Rhijngeestus
Hercules Rhijngeestus is and artwork that will soon grace Park Landskroon in Nieuw-Rhijngeest in Oegstgeest. He'll be balancing on 1 foot, w...
Exhibition: 9x9 imagined
3 x 3 = 9 9 x 9 = 81 Simple calculations with many different meanings.
- Oude UB
Exhibition: Silk Road Cities
Documented via old photos, drawings, and postcards.
- EST Art Foundation
Exhibition: Moving Perspective
EST presents the exhibition Moving Perspective
Route of Discoveries
There have been a lot of amazing and important discoveries done in Leiden. Follow the Route of Discoveries: see new places in the city or fi...
- Rijksmuseum Boerhaave
Playing with mathematics
Maths is really everywhere. Make a whirlpool and build your own bridge. Discover what sound looks like and play with perspective like an art...
- Museum de Lakenhal
Museum De Lakenhal shows planktonium by Jan van Ijken: a magical art film about the life of plankton.
The Leiden Maths Walk
For lovers of maths, there's a walk they can go on all by themselves: The Leiden Maths Walk with challenging mathematical questions.