This Spring 2021 issue of Historical Reflections/Réflexions Historiques is about cultural heritages and their transmission, focusing on the period from the middle of the eighteenth century to the present. An important stimulus for the creation of the issue was the European Year of Cultural Heritage (EYCH) in 2018. There were four main themes for the EYCH: protection, engagement, sustainability, and innovation. National coordinators and local organizers of events and initiatives across the continent adopted the unifying slogan “Our Heritage. Where the past meets the future.” The articles brought together here serve as an invitation to readers to continue reflecting on subjects and questions that were at the heart of planning for and supporting public participation in EYCH 2018. The European Year of Cultural Heritage provided myriad opportunities to discover the roles played by individuals and groups in the preservation and valorization of natural sites and landscapes, public monuments, cultural institutions, artifacts, digital resources, and intangible cultural heritage. It highlighted educational initiatives to raise awareness of multiple, diverse cultural heritages within communities and to promote intercultural dialogue. It pushed governments and nongovernmental organizations to address matters of financial investment, legal accountability, partnership management, and the shaping of policies on conservation and ownership rights. It challenged professional historians as well as archivists, librarians, archeologists, conservators, and curators to think hard about widening access and about ways of integrating local, national, and international perspectives when communicating with audiences about surviving traces of the past.