Context: However, the Orthodox claim to absolute fidelity to past tradition has been challenged by scholars who contend that the Judaism of the Middle Ages bore little resemblance to that practiced by today's Orthodox. Rather, the Orthodox community, as a counterreaction to the liberalism of the Haskalah movement, began to embrace far more stringent halachic practices than their predecessors, most notably in matters of Kashrut and Passover dietary laws, where the strictest possible interpretation becomes a religious requirement, even where the Talmud explicitly prefers a more lenient position, and even where a more lenient position was practiced by prior generations.

Question: what is the name of the movement of liberalism?
Answer: Haskalah

Question: what sometimes prefers a more lenient position on Dietray laws?
Answer: Talmud

Question: previous generations typically praciced a more lenient position in regard to what?
Answer: dietary laws

Question: What are dietary laws known as?
Answer: halachic practices

Question: What has not been challenged by scholars?
Answer: Unanswerable

Question: What has a lot of resemblance today as it did in the middle ages? 
Answer: Unanswerable

Question: What happened as a reaction to the conservatism movement?
Answer: Unanswerable

Question: What is not a religious requirement regarding dietary laws?
Answer: Unanswerable

Question: What explicitly prefers a more stricter position regarding Passover dietary laws?
Answer: Unanswerable