Thanks to our individual contributors

• Eric Kansa has provided his expertise and support from the beginning.
• Ignacio Carvajal translated this site into Spanish.
• Sarah Buchanan helped curate the initial dataset.
• Raymond Yee and Maxwell Lincoln helped develop PeriodO tools.
• Dawn Marie Hayes, Elijah Fleming, Frank Lynam, Grace Gibson, Jonathan MacLellan, R. Kyle Bocinsky, Seta Štuhec, Stefanie Carter, Thomas Rover, and Will Hanley submitted early patches to the dataset.

Thanks to our organizational partners

The following organizations contributed advice, support, code, or periods to PeriodO:

• Advanced Research Consortium
• Agile Humanities Agency
• Archaeology Data Service
• ArcheoInf
• ARIADNE
• Athenian Agora Excavations
• bits.coop
• British Museum
• China Historical GIS
• Digital Index of North American Archaeology
• Encyclopedia of Egyptology
• Epigraphic Database Heidelberg
• Europeana
• Fasti Online
• German Archaeological Institute
• Getty Research Institute
• Heritage Data
• Historiska Museet
• Hypermedia Research Unit
• Incipit-CSIC
• Levantine Ceramics Project
• Library of Congress Linked Data Service
• Open Context
• PaleoCore
• Pelagios
• Pleiades
• Portable Antiquities Scheme
• Pyla-Koutsopetria Archaeological Project
• Rijksdienst voor het Cultureel Erfgoed
• tDAR
• World-Historical Gazetteer