The document summarizes the history of research on tropical rainforests in Costa Rica from early chronicles in the 16th century to modern technologies. It describes how early European naturalists lived in Costa Rica for many years in the 19th century to conduct complete inventories of the flora and fauna. It then outlines some prominent 20th century Costa Rican biologists and botanists who conducted important field research and established institutions that helped develop the country's understanding of biodiversity and conservation efforts. The document concludes by noting how modern research benefits from more institutional support, funding, technology, and international collaboration.