In case you're wondering why you're being downvoted: the history is much more nuanced. While the Archimedes Palimpsest is a genuine and tragic example of lost text, the broader claim that Christianity engendered a period of scientific erasure is considered outdated (https://en.wikipedia.org/wiki/Conflict_thesis).

For example, monasteries were the primary centers of literacy and education in Europe during the early middle ages, and they acted as the primary bridge for the survival of Greco-Roman intellectual heritage in the West. Not always intentionally, but they were the only sanctuary for books during those times.

Besides, this is not how history works. Civilizations come and go and times of transition always take a toll. An eye-opening recent book on these questions I can recommend is Tom Holland's "Doninion: The Making of the Modern World".