For 20 years, the Lions’ fans have been waiting for another division championship.

So what’s another two months, right?

But with another burden lifted Sunday, the wait is officially on now. And so is the weight of expectations, I imagine, though the Lions insist they won’t let it drag them down.

Not after Sunday’s dramatic 21-19 victory over the Chicago Bears at Soldier Field gave them the sole possession of first place in the NFC North, leaving the Lions staring at an unfamiliar November sight: Open field, with room to run.

They haven’t held the division lead this late in the season since 1999, but they’re a game up on Green Bay and effectively two games ahead of Chicago after Sunday’s win.

All of this means there’s nothing standing in the way of them winning their first division title since 1993. Nothing standing in the way of the Lions hosting just their third home playoff game since they won their last NFL championship in 1957.

Nothing but themselves, that is.

“Honestly, I talked to the guys and I told ’em, ‘Great win, no question about it. But you’ve gotta make it count,’ ” said quarterback Matthew Stafford, whose 14-yard touchdown pass to Calvin Johnson — who else? — with 2:22 remaining Sunday proved to be the winner. “You’ve got to make this one count later on down the road.”

Anywhere on the road is where the Lions have run into trouble, historically. That probably explains why, when I asked Johnson after the game what it meant to sweep the Bears for the first time since 2007, the All-Pro receiver started to answer and then stopped, with a puzzled look on his face.

“We won here my rookie year?” he asked.

Reminded that, yes, the Lions had beaten the Bears in Chicago in 2007, right before the bottom fell out for this franchise, Johnson laughed.

“OK, that shows you how long it’s been,” he said. “It’s been a while. It feels great to get one here. And especially with all that we’re playing for, to take a lead in the division.”