eTRAP (electronic Text Reuse Acquisition Project) is an Early Career Research Group funded by the German Federal Ministry of Education and Research. This interdisciplinary team studies the linguistic and literary phenomenon that is text reuse with a particular focus on historical languages. Specifically, we look at how ancient authors copied, alluded to, paraphrased and translated each other as they spread their knowledge in writing. Our methodology is hinged on the TRACER engine, a powerful suite of algorithms aimed at detecting various forms of reuse. eTRAP organises international workshops on text reuse as well as the Göttingen Dialog in Digital Humanities.