Kula Toponyms: Preserving the Cultural–Linguistic Landscape of Eastern Alor

Toponyms, i.e., place names, are fundamental for reconstructing the diachronic development of communities without written records, encoding unique historical and cultural data of any civilisation; however, they are vulnerable to loss as languages decline. This also happens for the scarcely documented language Kula (or Tanglapui), a Papuan Alor-Pantar language (Trans-New Guinea macro-family) from Eastern Alor, Southeastern Indonesia (Alor-Pantar Archipelago, Timor area). The spatial knowledge encapsulated in Kula toponyms has been critically threatened by resettlement since the 1960s, alongside its declining daily usage. To preserve this heritage, this article presents a systemised dataset of Kula place names derived from oral traditions, documented for the first time during fieldwork between 2023 and 2026. Data collection followed established language documentation methodologies, utilising semi-structured interviews and community verification with elder native speakers and local consultants to ensure adherence to ethical standards and cultural accuracy of recording practices. The dataset comprises 31 entries of place names, each detailing toponymic variants, glosses/folk etymologies, associated natural resources, stories/historical elements, settlement type, location, habitation status, and internal and external tribal links when information is available. This paper fills a critical gap in Timor-Alor-Pantar linguistics, offering an open-access resource for reconstructing migration patterns and preserving the Kula people’s collective memory against accelerating language endangerment.