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Posts by Daan Jansen

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After months of planning, York got to host the wonderful Yuck workshop in collaboration with the Northern Environmental History Network! Thanks so much to everyone who attended and contributed to the amazing discussions! It was so good to bring together so many people studying yucky living things🍄🐀🌱

1 week ago 2 1 0 0

JOB ALERT: Two 4.5 year postdoctoral positions to work on my Wellcome-funded project 'Conserving Global Health: Biodiversity Protection and the Prehistory of Planetary Health'. Please share widely!

CLOSING DATE: 23 April (the date on Jobs.ac.uk is apparently incorrect)

1 week ago 46 59 2 3
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It's world rat day and @archaeorattus.bsky.social has a new blog post to celebrate! Read it on the project's site: sites.google.com/york.ac.uk/r...

2 weeks ago 1 0 0 0
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two muppets are sitting next to each other on a couch in a living room . ALT: two muppets are sitting next to each other on a couch in a living room .

They have a certain vibe to them

1 month ago 1 0 0 0
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🚨Call for Papers!
3–4 September, Universität Augsburg: 2-day workshop on "theorising uncharismatic species in environmental history". Who are they? Where are their voices in the historical record? What insights do they offer to the field of environmental history? Be there! Abstracts due 15/05/2026!

1 month ago 35 26 1 3
My rats, Enkidu and Gilgamesh, pondering underneath a blanket

My rats, Enkidu and Gilgamesh, pondering underneath a blanket

Sometimes I wonder if they wonder what I'm thinking about too

1 month ago 1 0 1 0
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Just a few days left to apply for the Yuck workshop organised in collaboration with @northernenvhistory.bsky.social! Come talk about all that wriggles, invades, infects, disgusts and/or steals in York!

2 months ago 7 2 0 0
An excel spreadsheet that shows that 100% of my papers have been marked

An excel spreadsheet that shows that 100% of my papers have been marked

LAST PAPER OF THE SEMESTER MARKED WOOOO

2 months ago 3 0 0 0

My footnotes are all variations on "I remember this" 🦖

3 months ago 0 0 0 0
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I am 11,111 days old today

3 months ago 1 0 1 0

York is talking pests, vermin, weeds and germs next april! If you know anyone interested in historical approaches to these maligned beings, please send them this CFP (or apply yourself!)

4 months ago 10 8 0 0
Front cover of "Amsterdam Diaries, Life Writing and Identity: Urban Lives"

Front cover of "Amsterdam Diaries, Life Writing and Identity: Urban Lives"

First page of my chapter, titled "fetching dogs from depositions"

First page of my chapter, titled "fetching dogs from depositions"

A little while ago my very first publication came out - a chapter in a book on life in Amsterdam through the ages. It's based on a bit of my master's research on dogs in the Dutch capital. It explores methods of uncovering animal history and shows a glimpse of dogs' lives. Open access is pending!

4 months ago 5 1 0 0
A small wood carving of a murid sits on an otherwise empty desk

A small wood carving of a murid sits on an otherwise empty desk

The move to a new desk begins...

6 months ago 1 0 0 0
Gilgamesh the rat and me the human making eye contact

Gilgamesh the rat and me the human making eye contact

After two weeks of travel I'm finally reunited with my rats :D

7 months ago 1 0 0 0
A print depicting a man reading in a train with a ghostly devil next to him. The text reads "Danger forever remains your invisible travelling partner. Insure yourself against travel accidents with Fatum" (my translation)

A print depicting a man reading in a train with a ghostly devil next to him. The text reads "Danger forever remains your invisible travelling partner. Insure yourself against travel accidents with Fatum" (my translation)

A print depicting a city in disarray: a bus drives into a pit, a car hits a lamp post, a piano is about to fall onto a pram, a man is falling out of a window, and many more disasters. Above it all hangs a bloody sword marked "accidents". The print is captioned "this sword hangs over all your heads! Insure yourself in a timely fashion with the M-Z" (my translations)

A print depicting a city in disarray: a bus drives into a pit, a car hits a lamp post, a piano is about to fall onto a pram, a man is falling out of a window, and many more disasters. Above it all hangs a bloody sword marked "accidents". The print is captioned "this sword hangs over all your heads! Insure yourself in a timely fashion with the M-Z" (my translations)

Dutch insurance advertisements used to hit different (translations in the alt texts)

7 months ago 0 0 0 0
A screenshot of google maps showing a train ride of 11+ hrs passing by the Dutch town Breukelen, which gives its name to Brooklyn, NY

A screenshot of google maps showing a train ride of 11+ hrs passing by the Dutch town Breukelen, which gives its name to Brooklyn, NY

No sleep till Breukelen

7 months ago 3 0 0 0
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excited to share the call for the workshop

EXTRACTIVE NATURES / NATURES OF EXTRACTION

happening at @uobrisceh.bsky.social on 6-7 Nov 2025,

made possible by the @britishacademy.bsky.social

deadline: 10 September!

full call below ⤵

#envhist #envhum

8 months ago 77 64 3 1

Indeed! Wonderful conference and a great panel much enriched by your contribution!

7 months ago 1 0 0 0
Title page for a rat presentation, titled "Rats! Changing perceptions of (Early) Modern Britain and NL". The image depicts a medieval miniscule of rats rowing a boat

Title page for a rat presentation, titled "Rats! Changing perceptions of (Early) Modern Britain and NL". The image depicts a medieval miniscule of rats rowing a boat

All geared up for a weedy, verminy and ratty discussion at session 12-06 this afternoon at #ESEH2025 🌱🐀🐾

8 months ago 3 0 0 0
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Rapt multispecies audience this morning at the histories of soils and pesticides session at #ESEH2025

8 months ago 9 1 0 0

Great roundtable session on early modern art as sources for climate change! Tons of thoughts on its applicability to other "invisible" environmental processes, like invasive species 🤔 #eseh2025

8 months ago 3 0 0 0
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An amazing pair of keynotes to kick off #ESEH2025 excited for the rest of the conference!

8 months ago 3 0 0 0
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Last month was the @archaeorattus.bsky.social project's annual meeting and we realised that we're halfway through the project!

Read all about it on our blog! sites.google.com/york.ac.uk/r...

8 months ago 1 0 0 0
The ‘Loyalty in the Medieval World’ network welcomes proposals which explore the
intersections between the concept of ‘loyalty’ and the IMC 2026 theme of ‘temporalities’.
Was there a shift in how the concept of loyalty was used and perceived by people across the
Middle Ages? To what extent, if at all, were bonds of loyalty an archaic predecessor to the
coercive potential of a centralising medieval ‘state’? How did the language (e.g. treue, fides,
leal), theories, and practices of loyalty change or stay the same in the medieval period? What
can the study of loyalty do for the historian of medieval political society? Submissions could
reflect on:
• Emotional frameworks of loyalty
• Political frameworks of loyalty
• Ethical and legal frameworks of loyalty
• The theory and practice of loyal behaviour
• Loyalty and identity
• Loyalty and power
• Horizontal loyalties and solidarities
• The material culture of loyalty
• Contested and/or multiple loyalties
• Disloyalty

, such as women, children, exiles, and migrants.
Please send a paper title, affiliation, and abstract of up to 150 words to Eleanor Bailey
ejbailey98@outlook.com, Katy Bennett katy.bennett@york.ac.uk, AND Jenny McHugh
j.mchugh@lancaster.ac.uk.
Deadline 15th September.

The ‘Loyalty in the Medieval World’ network welcomes proposals which explore the intersections between the concept of ‘loyalty’ and the IMC 2026 theme of ‘temporalities’. Was there a shift in how the concept of loyalty was used and perceived by people across the Middle Ages? To what extent, if at all, were bonds of loyalty an archaic predecessor to the coercive potential of a centralising medieval ‘state’? How did the language (e.g. treue, fides, leal), theories, and practices of loyalty change or stay the same in the medieval period? What can the study of loyalty do for the historian of medieval political society? Submissions could reflect on: • Emotional frameworks of loyalty • Political frameworks of loyalty • Ethical and legal frameworks of loyalty • The theory and practice of loyal behaviour • Loyalty and identity • Loyalty and power • Horizontal loyalties and solidarities • The material culture of loyalty • Contested and/or multiple loyalties • Disloyalty , such as women, children, exiles, and migrants. Please send a paper title, affiliation, and abstract of up to 150 words to Eleanor Bailey ejbailey98@outlook.com, Katy Bennett katy.bennett@york.ac.uk, AND Jenny McHugh j.mchugh@lancaster.ac.uk. Deadline 15th September.

Call for Papers @imc-leeds.bsky.social 2026 ‼️ The 'Loyalty in the Medieval World' network welcomes papers which explore the intersections between the concept of ‘loyalty’ and the conference theme of ‘temporalities’, c.500-1500! Get in touch by 15 September

8 months ago 13 11 0 1
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Rat-nap

9 months ago 0 0 0 0
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Enkidu (a rat) napping in a hammock, his brother's butt is in the background

Enkidu (a rat) napping in a hammock, his brother's butt is in the background

Back home with my boys 🐀🐀❤️

10 months ago 0 0 0 0
Conference programme booklet on a notebook

Conference programme booklet on a notebook

From Zeeland to Scotland, Middelburg to St Andrews, conference to conference to learn all about histories of animal-borne diseases

10 months ago 2 0 0 0
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I got to speak about rat history with some amazing people at the RIAS-DEHN conference in Middelburg this week! (Thanks to @chrmeijer.bsky.social for the photo!)

10 months ago 2 0 0 0
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RATTUS Project - Blog

It's #worldratday! To celebrate, I wrote a pretty fun post for the @archaeorattus.bsky.social project blog about #rats nibbling on #archive material. Check it out! sites.google.com/york.ac.uk/r...

1 year ago 0 0 0 0
A screenshot of a news broadcast featuring a photo a group of protesters, with me prominently in the centre holding a sign that says "Rich Tice? I'd rather have head lice"

A screenshot of a news broadcast featuring a photo a group of protesters, with me prominently in the centre holding a sign that says "Rich Tice? I'd rather have head lice"

My beautiful sign and I have become the face of #antifa in English rightwing media this weekend after a peaceful protest against #ReformUK in #York! I couldn't be more proud :)

1 year ago 4 0 0 0