This theme issue has two primary goals: to illuminate the underdeveloped or faltering areas of the discipline as they relate to archaeological collections and to offer tangible paths forward to address the systemic problems identified as they impact the future of archaeology. Present-day archaeology is complicated due to its many sectors of practice: academia/faculty; cultural resource management; federal, state, and local government; tribal governments and communities; descendant communities; students; the general public; and different types of archaeological repositories. Given this complexity, it can be difficult to identify the expectations (and realities) of each sector, which, if better understood, would help illuminate the nuances of preservation, accountability, discoverability, and use of archaeological collections across the discipline. Without a solid understanding of these nuances, efforts to advance the discipline are undermined. This introduction provides an overview of the articles that address emerging and urgent issues and offer viable steps forward. These challenges include the interrelationships between ethics, collaboration, and training; the preservation and management of digital records and data; collections discovery and reuse; collections-based research; training in material culture; making collections knowable to constituencies outside archaeology; preparing for repatriation from a management perspective; and the intricacies of the archaeological digital data system.

In Uruguay, there are records of archaeological collections at least since Darwin's visit in 1832. Since then, the role of collections and collectors has been changing in relation to official institutions, researchers, and professional archaeologists. In the years following the creation of the university degree in anthropology, during the 1980s and 1990s, academic and official speeches considered collectors one of the greatest threats to the development of the discipline in the country. Their collections were seen as useless for research, and it was argued that they had no context. New generations of archaeologists have been reversing this situation, redefining the research of archaeological collections and reviewing the relationships and interactions with nonacademic stakeholders. We present some of our experiences here, based on students’ training in this line of work, the integration of responsible and responsive collectors in the research process and site conservation, the collaborative register of archaeological sites, and the promotion of donation or conservation of collections (avoiding commercialization). We propose possible work methodologies at the national level, such as the formation of research groups, which involve the coparticipation of different stakeholders, the development of a professional code of ethics, and changes in legislation.

Se abordan las actividades arqueológicas que George Dorsey realizó en el Perú a finales del siglo diecinueve como comisionado del Departamento de Etnología de la Exposición Universal de Chicago de 1893. El objetivo principal de la comisión de Dorsey era realizar excavaciones arqueológicas y recolectar artefactos para su exhibición en dicha exposición universal. En especial se le encargó la excavación de tumbas en la necrópolis de Ancón, cuya metodología arqueológica e interpretaciones de los hallazgos se describen. Se explica el contexto histórico, institucional y personal en el cual Dorsey realizó sus actividades en el Perú y los EE.UU. Se concluye que sin entender el entramado social, económico, político e ideológico en el cual se encontraba inmerso Dorsey, no se puede comprender su rol en el surgimiento de la arqueología como disciplina científica a finales del siglo diecinueve.

In Brazil, as in most countries, history and natural history museums are the repositories of rich collections of excavated archaeological material. One of the major challenges in working with these collections is the paucity of information available regarding the original excavations, which raises important questions that archaeologists and museum studies professionals have been grappling with for several decades: what interpretive value do these collections have without any contextual information, and are they worth maintaining in museum archives that are facing continuing crises in space and resources? This article uses the concepts of entanglement and assemblage to discuss a collection of ceramics excavated from one of the first Spanish Jesuit missions in colonial Paraguay, San Ignacio Miní (1610–1631), and housed at the Museu Paranaense in Curitiba, Brazil. Despite the lack of contextual information from the 1963 excavation, we can begin to explore the entangled pasts, present, and future of these objects by tracing the trajectory of the collection from the initial formation through excavation and contemporary analysis. Innovative approaches are needed to address methodological and theoretical concerns in analyzing archaeological museum collections to ensure that the knowledge and potential insights entangled in these collections are not lost.

The issue of pesticide-contaminated archaeological collections has generated concern among staff in collecting institutions. Pesticides have long been used, but the awareness of their unseen persistence and their potential as a human health hazard is a new aspect of preventive conservation. Background information and guidelines for developing a pesticide history are provided for repositories, museums, cultural resource management companies in the private and public sectors, academia, and other public collections.