Complex sentence: It began to be used to teach literary theory soon after publication and remained in common use into the 1960s; its success has been credited as introducing European literary scholarship into the US and crystallizing a movement towards intrinsic literary criticism.
Split into simpler sentences: It began to be used to teach literary theory soon after publication and remained in common use into the 1960s. Its success has been credited as introducing European literary scholarship into the US and crystallizing a movement towards intrinsic literary criticism.