The premil stance did not start during the 19th century.
I know the latin prof from SWBTS who translated the Ephraem manuscript (A.D. 373), which was discovered in 1994 in a eastern Nestorian church. It has since been translated and the translation can be found in seminary archives. They have also be published in at least one book, Final Warning ISBN 0921714246.
In regard to Baptist history it didn't start in the ADs and it has been around prior to 1994. I was speaking to SBC doctrine in particular. They have not always have the premil stance and many still do not hold it.