Complex sentence: However, a 1997 revisionist account wrongly speculates 1 that Cohen was actually born into a poor Jewish family in Radzanów, Poland and that, soon after his birth in 1887, the Cohens escaped the pogroms of Eastern Europe and emigrated to London's East End.
Split into simpler sentences: However, a 1997 revisionist account speculates that Cohen was actually born into a poor Jewish family in Radzanów, Poland. Soon after his birth in 1887, the Cohens escaped the pogroms of Eastern Europe and emigrated to London's East End.