Archnet provides ready access to visual and textual material to facilitate teaching, scholarship, and professional work of high quality.&nbsp;This is an unparalleled resource that continues to grow with both the addition of historic archives and documentation on contemporary trends shaping the built environment today.&nbsp;To better serve you, our user, in the study of art and architecture of Muslim societies, we continue to build our vast collection of sites, publications, images, and videos.To ensure a high level of scholarly content and accuracy in the information provided, we appreciate your expert feedback.&nbsp;We are aware that many of the sites in our database require updated information including descriptions, drawings, images, and other data.&nbsp;If you find a site (or sites) on Archnet for which you can contribute in compelling and meaningful ways, your generosity is most welcome. If you would be interested in contributing research or media to Archnet, please contact us using&nbsp;<a href="http://mailto:archnet-submission@mit.edu%22/" rel="noopener noreferrer" target="_blank">archnet-submission@mit.edu</a>.Archnet's collection is largely made up of the archives of scholars and architects. We welcome the donation of select archives from individuals and institutions based on our current editorial policies and priorities.&nbsp;If you have a collection you would like to bring to the attention of Archnet's editors, please send an email to:&nbsp;<a href="http://mailto:%20archnet-submission@mit.edu/" rel="noopener noreferrer" target="_blank">archnet-submission@mit.edu</a>.Thank you. <a href="http://libguides.mit.edu/islam-arch" rel="noopener noreferrer" target="_blank">Aga Khan Documentation Center</a>Massachusetts Institute of Technology

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Lecture 3: Ports and Centres of Exchange

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