Aramaic likely took over as the main spoken language from ~1000 BCE onward, but Akkadian continued to be used in scholarly, admininstrative, and other written contexts cdli.ucla.edu/P336029
A receipt for silver from the time of Darius I has Babylonian and Aramaic writing britishmuseum.org/research/colle…
Such notes sometimes summarised the contents, almost like the spine of a book britishmuseum.org/research/colle…
Around the same time, scribal students were also learning Greek, but that is a whole other thread... britishmuseum.tumblr.com/post/131211464…
Read about it (and more!) in “The Languages of Iraq, Ancient and Modern” available via @BISI1932 #openaccess bisi.ac.uk/sites/bisi.loc…