Bro you focusing on 18th century, ignoring other thing. Look. If you read original outlines, you get what I mean. Teachings of scholars like Thani's and Shah's If were followed, the decline of muslims would be out of question. 18th or 19th's decline was just outcome of why Muslim generally became obscured. The biggest problem of history opting students is that they think it is such obnoxious subject. If you write convincingly in just 2-4 pages, you deserve good marks. Please do not make arguments about dates and figures, they are just like recording of years.