Simplify the following text for a Grade 6 native English-speaking person.
Original: Janeitism did not begin until after the publication of J. E. Austen-Leigh 's A Memoir of Jane Austen in 1870 , when the literary elite felt that they had to separate their appreciation of Austen from that of the masses .
Simplified: Janeitism did not begin until after J. E. Austen-Leigh published A Memoir of Jane Austen in 1870 .