In scholarship on post-Persianate literary modernity, the emergence of the new institution of literature is often conflated with the delimitation and reification of national cultures as different manifestations of a single process. This article examines three anthologies of Persian literature from the interwar Persophone Soviet Union to reconsider the relationship between state cultural institutions’ procedures of literary modernization and nationalization. The anthologies mark out the stages by which classical Persian literature was portioned out to Soviet Eastern nationalities, and in particular the advent of Tajik literary history, but they also reveal the degree to which national literatures coevolved with new post-Persianate literary cosmopolitanisms and internationalisms.