#  Pop-up Exhibit: "The Crusades Come to Cambridge" (Houghton Library) 

 



####  calendar\_today Date and Time 

 **March 19 - March 21, 2025** 

 All day 

####  pin\_drop Location 

 **Edison and Newman Room, Floor 1, Houghton Library, Harvard Yard (open to the public)**  



 

 



 

 Come see a selection of items from the [Riant Collection](https://urldefense.proofpoint.com/v2/url?u=https-3A__harvard.us15.list-2Dmanage.com_track_click-3Fu-3D260659d604837f52d02968c77-26id-3Db3ef52033a-26e-3D470488d17f&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=HKPxmUdnYUKWMx8pouzTcDfH7LlrI74AKC20L52AMiE&m=ciry2MOiHhPywt_JDgLNs9OUAcagXXCeqG66AAigNAPR4EsUNY1aeY5Cyt8jdpCW&s=fP1mokIXPP95uVlNMjiFPXuu6KxE3RVxYTz3QnzkUac&e=), curated by 2024 Houghton visiting scholar Laura Morreale. One featured manuscript, [MS Riant 81](https://urldefense.proofpoint.com/v2/url?u=https-3A__harvard.us15.list-2Dmanage.com_track_click-3Fu-3D260659d604837f52d02968c77-26id-3Ddac82a9d17-26e-3D470488d17f&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=HKPxmUdnYUKWMx8pouzTcDfH7LlrI74AKC20L52AMiE&m=ciry2MOiHhPywt_JDgLNs9OUAcagXXCeqG66AAigNAPR4EsUNY1aeY5Cyt8jdpCW&s=0snQ90rcShCv9XjJ1h3nP4hu1Us_iLlqsGlrMEV-ceY&e=), contains three large circular charts with rotating volvelles used to calculate the date when Easter occurs, which have posed some interpretive challenges.  
  
[*Read more about how Visiting Fulbright scholar Anthony Harris helped to decipher the charts*](https://urldefense.proofpoint.com/v2/url?u=https-3A__harvard.us15.list-2Dmanage.com_track_click-3Fu-3D260659d604837f52d02968c77-26id-3De70cda58f3-26e-3D470488d17f&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=HKPxmUdnYUKWMx8pouzTcDfH7LlrI74AKC20L52AMiE&m=ciry2MOiHhPywt_JDgLNs9OUAcagXXCeqG66AAigNAPR4EsUNY1aeY5Cyt8jdpCW&s=Hwm45eLtNEIuzDnT6iUHBGpjbbc3cXCBXjnvbbHg1WQ&e=).



 

 



 

 See also:- [ Exhibit ](/event-categories/exhibit)
 
 

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