Working as a diplomat for the Ministry of Foreign Affairs: for many students it would be their dream. Alumnus Tom Groot Haar is busy making it a reality. 'My career seems like a preconceived plan, but it wasn't.'

During his bachelor's programme in International Studies, Tom de Groot became fascinated by the theme of peace and security. Now he designs and moderates training courses to help professionals develop further in this field.

The 'Groot Nederlands Student Kampioenschap' student games have been held for the first time in two cities, Delft and The Hague. To make this happen our Campus The Hague worked together with The Hague University of Applied Sciences and Inholland University of Applied Sciences. Three students look back…

Op maandag 1 april 2024 stierf onze leermeester, vriend en gewaardeerd collega Dr. Alexander Hendrik de Groot (Sander).

Team Marketing at Leiden University is the central point of contact for everything related to recruiting bachelor’s and master’s students, both nationally and internationally. Activities are carried out in a data-driven, strategic, and creative way to strengthen the University’s brand and guide prospective…

All doctoral dissertations are checked for plagiarism before they are submitted to the doctorate committee.

If you have a question about the University website, or if you wish to post an announcement or report content-related changes, please contact the web editors of your faculty or unit.

If you wish to find out about current construction projects, you will find an up-to-date overview of Leiden University construction projects below.

Communication, Outreach, Transferable skills

University is often a period of sexual exploration and experimentation, generally to the satisfaction of all involved. But sometimes you want it and the other doesn’t. Or vice versa. Or you can’t really tell. This is what the Safe Space play at Theater Ins Blau was about on 11 October. And: can your…

All University employees and researchers have a personal profile page on the website. This page will show where you work and how you can be reached.

The information on your profile page is generated by different underlying systems. You can (request to) change or delete it. Please note that it may take some time before the adjustments are shown.

Of the 150 elected representatives, 24 studied or conducted their PhD research in Leiden. Who are they and which degrees are most popular among these MPs?

Almost 3,500 visitors came to Master’s Open Day in Leiden and The Hague.

Several years ago, two amateur archaeologists from Brabant discovered over a hundred Roman coins near to Berlicum in the north of the province. After years of research, it now appears that the location, close to a ford in the river, was a site for offerings. Another interesting fact is that the coins…

Is my cap on straight? Where in the cortège will I be walking? These are some of the questions asked by professors joining the Dies Natalis procession for the first time.

In November, Intigam Mamedov joined the Institute for History as a postdoctoral researcher. Below, he introduces himself.

Recently, the oldest parts of the Leiden University Archives have been preserved and digitised thanks to a grant from Metamorfoze. This makes an important source on the history of Leiden University – and academic life in the Northern Netherlands in a broader sense – widely available.

On 11 June 2025, the MA in International Relations (MAIR) Programme convened its 2nd Humanities & IR Graduate Conference at The Hague Campus (Schouwburgstraat), welcoming over sixty participants from twenty institutions in Europe, North America, and Asia.

An endoscopic camera was used to record images of reused medieval fragments on the inside of book bindings from the 16th and 17th centuries. The unique images were made as part of the project ‘FragmEndoscopy: An Innovative Way to Discover Hidden Heritage inside Early Modern Book Bindings’, funded by…

By looking at what is different, researchers often discover the special, the unusual. And that has already brought a wealth of highlights – also in Leiden.

Arts and culture

Last week, the sad news reached us that Dr Jan Schmidt passed away on 11 August 2025. We wish his partner, friends and family strength and comfort as they cope with this loss. Jan Schmidt will be remembered as one of the most prolific and learned scholars in the field of Ottoman codicology and histo…

On the eve of Leiden University’s 450th anniversary, the 1574th and 1575th Honours College students received their honours certificates. In a crowded Scheltema, people celebrated ‘that so many students have had the opportunity to broaden their horizons.’

The Advanced Nano-electrochemistry Institute Of the Netherlands (ANION) consortium will receive 23.6m euros in Gravitation funding for research on important electrochemical processes for energy transition. An additional four consortia with members from Leiden have also been awarded funding.

Music lovers are welcome at this free open-air concert celebrating 450 years of Leiden University, on Sunday 6 July. This special jubilee edition of the Rapenburg Canal Concert will feature a unique orchestra made up of our students, staff and alumni, performing on a floating stage.

How do our researchers and support professionals work together to ensure that groundbreaking innovations from the lab are given a place in society? Professor Huub de Groot and business developer Serkan Esiner share their experiences on collaborating within an EU-funded project that focuses on converting…