Roman Aqueducts the dawn of plumbing: https://online.kidsdiscover.com/quickread/roman-aqueducts-the-dawn-of-plumbing

Roman concert “Wikipedia” last modified December 2024: https://en.m.wikipedia.org/wiki/Roman_concrete

Roman Battlefield medicine: https://www.cambridgescholars.com/resources/pdfs/978-1-5275-3087-4-sample.pdf