All I’ve got to say is: the manufacture of ancient parchment must have been pretty darn good to keep Hipparchus’ astronomical data legible after being written over for centuries.
Kind of reminds me of modern computers. You can delete a document on a PC, but that only means somebody changed the the file extension. The document is there, unless it was truly written over — or cleaned as Hillary puts it.
And likewise, in this ancient text, the entire document was not available, only the data from one constellation was retrieved.
Has man progressed or gone backward since this Ancient Greek astronomer’s time on Earth? Inquiring minds want to know :- )
Ecclesiastes 1:9
New International Version
What has been will be again,
what has been done will be done again;
there is nothing new under the sun.