Agricultural Research in the Democratic Republic of Congo, Rwanda and Burundi dates back to the beginning of the Belgian colonization (1901-1960). Initially, state plantations and experiment stations were built throughout the Belgian territories. In 1933, these facilities were expanded with the creation of INEAC (Institut National pour l Etude Agronomique du Congo Belge, 1933 1962). The INEAC headquarters were based at Yangambi on 25.000 ha, surrounded by a 200.000 ha reserve. The data archives are diverse, with a large temporal and geographical spread. They include daily weather records, specific observations of seasonal changes in forest growth, countless herbarium specimens and detailed photographic documentation. With a network of 36 research stations spread across the three territories, INEAC was the largest tropical agricultural research institute in Africa until 1960. In 1962, following independence, INEAC was abruptly disbanded. Today the INEAC archives are stored in three Belgian institutes: the Botanic Garden of Meise, the Royal Museum for Central Africa and the National Archives of Belgium. The agronomic, climatic, biodiversity and edaphic legacy data hold great potential and relevance for current and future applied and basic research in the Congo Basin and Albertine Rift. Their scientific value resides in the extent of the data collected in a region where the availability of reliable baseline measurements are practically absent. By their nature, the archives also invite a re-interpretation of our colonial heritage, through the revelation of sometimes controversial histories, such as the life story of Panda Farnana.