It's a race against time for Charles Jeurgens, Leiden Professor in Archival Studies. He is investigating how the colonial authorities created the archives in the National Archive in Jakarta. ‘The acidic paper deteriorates rapidly in this hot and humid climate.’

About 90 per cent of Austronesian and Papuan languages are under threat of soon becoming extinct. Marian Klamer is the only professor in the world who researches both these language groups. She records languages before they disappear and sheds new light on the history of Indonesia. Inaugural lecture…