[Avodah] burning of the talmud

[Eli Turkel]

<<PS.   One of the Maharam's students was the Rosh, who later fled  to Spain
and  taught Torah there, resulting in the cross-fertilization of Torah
between the  Ashkenazic and Sephardic communities (not the only time such
cross-fertilization  occurred, of course).>>

This isd a common fallacy. Actually the Rosh was relatively little influenced
by sephardic halacha. His yeshiva in Toledo continued for many years
fairly isolated from the surrounding sephardic community.

The main advocate of combined ashkenazi-sephardi learning was in fact
the Ramban who learned from Baalei hatosafot and truly combined the
best of sephardi tradition with that of the Tosafot. This was expanded by
his talmid the Rashba and then the Ritva all with their chiddushin.

It is tru that the Tur quotes from the Ramban but in fact not much is known
of the yeshiva of thge Rosh until 1492 though we know it existed it didnt
produce anything of lasting influence after the Tur,
See Ta Shma for extensive discussion

-- 
Eli Turkel