Too often those in power lump thousands of years of Middle Eastern religion and culture into monolithic entities to be feared or persecuted. But at least one government institution is doing exactly the opposite. For Nowruz, the Persian New Year, the Library of Congress has released a digital collection of its rare Persian-language manuscripts, an archive spanning 700 years. This free resource opens windows on diverse religious, national, linguistic, and cultural traditions, most, but not all, Islamic, yet all different from each other in complex and striking ways.

“We nowadays are programmed to think Persia equates with Iran, but when you look at this it is a multiregional collection,” says a Library specialist in its African and Middle Eastern Division, Hirad Dinavari. “Many contributed to it. Some were Indian, some were Turkic, Central Asian.” The “deep, cosmopolitan archive,” as Atlas Obscura’s Jonathan Carey writes, consists of a relatively small number of manuscripts—only 155. That may not seem particularly significant given the enormity of some other online collections.