Most of us know that Venice, Genoa, and Florence were major Mediterranean powers during the Renaissance. But did you know that in terms of trade and sea power, Barcelona was probably more powerful than two of these three?

On this date, this course will only be available in Dutch. For further information, see the Dutch page. Please note that this workshop will also be held in English on March 13th (13:00-14:30) and March 16th (10:00-11:30).

On this date, this course will only be available in Dutch. For further information, see the Dutch page. Please note that this workshop will also be held in English on March 13th and March 16th.

NWO-funded audiovisual research into the experiences of migrants during major life events has culminated in new insights that can further our understanding of complex migration dynamics. The completion of this five-year project was marked with a roundtable event including international guests.

Speculation about alien life, a new nitrogen map, AI as a thesis supervisor, groundbreaking telescopes and multi-million-euro investments to combat antimicrobial resistance – the diversity of these topics shows that our readers are just as broadly interested as our researchers. Discover the most-read…

Do you have a question about submitting an invoice? Or do you need help with procurement? Below you will find more information.

The financial developments for the coming years are outlined in the Framework Memorandum. The Memorandum forms the basis of the Planning & Control cycle for each new year. Furthermore, it compares the expected income from the first income stream (government funding and the tuition fee) with the budgets…

If you cycle to work, you can use the University’s bicycle racks or lockable bicycle sheds; to use a lockable shed, however, you need a bicycle pass. At some locations you can also borrow a staff bicycle.

Together with physiotherapist and lifestyle therapist Jaap Wonders of SMC Rijnland, Helen Pluut conducted research during the first COVID-19 wave on the experiences of working people. The reason for the research was the compulsory situation of working from home many people found themselves in. One of…

Astronomers have found complex organic ice outside the Milky Way for the first time. The discovery shows that the building blocks of life could arise early in the universe - and under a variety of conditions, said Leiden astronomer Will Rocha.

James Webb life’s building blocks

The former outreach team of the Social Resilience and Security programme 'Jonge Wetenschappers' developed a podcastseries (in Dutch) about the online life of today’s youth and the related social challenges that adolescents face.

Magnets for electric cars and wind turbines contain only a small amount of the rare earth metal dysprosium. Yet, this metal is responsible for a large share of the environmental impact and costs, according to research by environmental scientists Stellina Samuel, Robert Istrate and René Kleijn.

Cultural anthropology students study how architecture influences student behavior, safety, and community at MBORijnland through fieldwork research.

What’s really happening in the space between the cells in your body? With the Collagen Canvas project, students from Leiden University invite you to explore this question by blending science with art. This interactive artwork immerses you in the dynamics of the extracellular matrix—the invisible structure…

A day at the beach, games, a visit to an embassy and a pub crawl. The activities at HOPweek help new students get to know not just The Hague but each other too.

Geriatrics needs to radically change. This is what Simon Mooijaart will say in his inaugural lecture.

Curious about what goes on at the Leiden Bio Science Park? During Dutch Bio Science Week (27 June - 5 July), organisations across the park will open their doors. For nine days, Leiden will be dedicated to life sciences and health, with activities for all.

Three student athletes from Leiden University are representing the Netherlands at the FISU Summer World University Games, a kind of Olympic Games for students.

The former Valkenburg airfield is steeped in history: the Romans defended their empire here, German forces landed here in 1940 and even the Cold War left its mark. Now thousands of homes are planned for the site. Students from Leiden and Delft are exploring how to make this past visible.

In the Honours College course 'From Research to Children's Books', students learned how to translate scientific insights into accessible language. This also included writing their own stories for children. After the solitary process of writing and editing, it was time to put their skills into practi…

Deliberative assembly

The underwater world around present-day Indonesia has changed greatly in recent centuries as a result of human activity. University lecturer Johannes Müller has been awarded an NWO XS grant to map the history of the Indonesian ecosystems.

Course, Workshop

About forty microscopes, various laboratories, and some 15,000 zebrafish: that’s Sylvia le Dévédec's workplace. She is one of the managers of the Leiden Cell Observatory, a unique facility accessible to all researchers.

It is not always easy for students to apply their academic knowledge in practice and get acquainted with the work environment of professional public organisations. Public organisations may struggle in turn to successfully address leadership challenges in their current way of working.

Leiden University’s Education Dashboard contains key data for all the university’s degree programmes. Please note that at present the dashboard is only available in Dutch. For more information see the Dutch staff website or send an email to cijfers@bb.leidenuninv.nl.

We carry out regular evaluations with a view to improving the quality of our teaching. The programme committees and the Accreditation Organisation of the Netherlands and Flanders (NVAO) play an important part in this process. In addition, a student satisfaction survey is also carried out very year:…

Monica den Boer, who has decades of experience within police and defence and was also active as a Member of Parliament (D66), has been appointed extraordinary professor of Police Studies.

How do we deal with large sources of greenhouse gases? Do schools provide a socially-inclusive environment for all children? And how can we protect Earth’s nature? These questions have two things in common: they are complex global challenges, and data can help answer them. Mitra Baratchi is computer…

It is the final stretch for the students of FGGA. Summer is approaching and they are working hard to complete everything before the summer holidays. We asked some of them how they look back at the academic year. ‘Being a mentor during HOP week is something I can recommend to everyone’

Dr Alex Geurds was elected as a Fellow for the Society of Antiquaries, a prestigious and old educational charity based in London. Established in 1707, the society aims at the encouragement and advancement of the study and knowledge of the antiquities.

Luis is a third-year bachelor’s student Security Studies. During his elective space, he did an internship at the German Ministery of Labour and Social Affairs.

From films, video games and historical novels to Nordic folk bands, Old English from the early Middle Ages is experiencing a revival in the 21st century. Together with international colleagues, university lecturer Thijs Porck (LUCAS) made a book about the 'resurrection' of this dead language.

Five students who graduated from the Bachelor Security Studies share their experiences. Where did they end up after graduation? Are they still using the skills they gained during their studies?

An international research team is to search for invisible life in the Galápagos Islands. The diversity of bacteria and other microscopic organisms may not be evident to the naked eye, but it is essential to nature. To the islands' giant daisies, for instance: unique endemic plants that are currently…

From chilling on the beach to a speech by the mayor. HOPweek is a speedy way for hundreds of ‘Leiden’ students who are going to be studying in The Hague to get to know each other. Many of them come from abroad. ‘I actually dare to cycle here.’

Hydrogen can help to solve the climate problem. At least, if we start producing it in the right, clean way. Leiden researchers mapped out the global environmental impact of hydrogen production and looked ahead to 2050. They published their work in Energy & Environmental Science.

Netherlands and China can learn from each other to handle household and livestock wastewater more sensibly. In the FOREWARD project, scientists from Leiden, Wageningen, and China are working together with local partners on feasible solutions that advance the environment, health, and economy.

Getting young people excited about history is quite possible without books. Researchers from Leiden travelled to Morocco to work with schoolchildren on reconstructing cultural heritage in the popular video game Minecraft. The result: one virtual 14th-century city gate – and 20 teens with a greater appreciation…

After nearly two years of retirement, Wil Roebroeks looks back on a career that began in a time of freedom and ended in a field that has undergone profound academic and social change. ‘I have been fortunate to always enjoy my work,’ he says. ‘That is also my advice to younger generations: above all,…

In a new article in the journal Scientific Reports, Leiden archaeologist Wei Chu and colleagues report on recent excavations in Western Romania at the site of Româneşti, one of the most important sites in southeastern Europe associated with the earliest Homo sapiens. The site gives an important glimpse…

One of our RISE members, Prof. Laura Heitman, has been nominated for the TOPX Females to Follow “Guiding Star” award. TOPX empowers promising and ambitious women, and aims to honour inspirational females with remarkable careers in Life Sciences. TOPX selected her (and 7 other female professionals) because…

PhD defence

Using biomethane to produce ammonia, a crucial chemical in agriculture, could drastically reduce the climate impact of the process. In a study published in One Earth, researcher Robert Istrate shows it’s even possible to make ammonia production net-zero or carbon negative.

In the next decades, thousands of wind turbines will be added to the North Sea. Environmental scientist Chen Li identified the most beneficial areas for their construction, focusing on material use, carbon footprint, and environmental impact. His paper was published in Environmental Science & Techno…

Knowing whether or not a treatment is working just by wearing your watch? Data scientist Ahnjili ZhuParris has identified a lot of opportunities for the use of machine learning in clinical research to monitor test subjects at home.