Jim Harbaugh went 13-3, 11-4-1 (lost SB), 12-4, and then 8-8 and was fired (or maybe quit, but either way lost the power battle with Baalke)

the highest win totals for top two teams in a division

In 1999 the 13-3 Titans finished 2nd to the 14-2 Jags in the AFC Central. The Jags only two losses were to the Titans. The Jags also lost the AFCCG to the Titans, then the Titans ultimately lost the SB at the 1 yard line against the Rams.

Do you think this is the first NFL game in history in which a fan has heckled an opposing player?

We need some Eagles fans to kidnap any Philly local Niners trying to guard the Rocky statue