This study examines how diasporic communities construct, preserve, and transmit cultural memory in the post-migration era, with particular attention to the archival practices through which global narratives are rebuilt across geographic and generational boundaries. Drawing on theoretical frameworks from memory studies, postcolonial scholarship, and diaspora theory, the research describes the mechanisms by which displaced communities engage with fragmented heritage materials, digital archives, and embodied knowledge to sustain coherent cultural identities. The study adopts a strictly descriptive methodology, systematically characterizing the phenomenon of cultural memory reconstruction across multiple diasporic contexts without attempting to establish causal or predictive relationships. Findings suggest that archival entanglement, the overlapping and sometimes contradictory coexistence of host-country narratives and origin-country histories, defines the memory practices of contemporary diasporic subjects. The implications extend to archival science, memory studies, cultural policy, and the broader scholarly conversation on migration and global identity formation.