Today, Texas A&M is known for its high-powered offensive attack, which is engineered by one of the best offensive minds in college football in Kevin Sumlin.

But things haven’t always been that way.

The Aggies have a couple of national championship teams that put some defensive numbers in the record books that are not likely to ever be broken.

Let’s take a look at a few of them:

5. Season-long shutout: Texas A&M completed the 1917 season without allowing a point through eight games, which set a school record. But the Aggies upped the ante in 1919, as they again held opponents scoreless for the entirety of a 10-game schedule. By the time the season was done, the Aggies had outscored opponents by a combined 275-0. Texas A&M claims a national championship from this season. John Chavis may make significant improvements to the Texas A&M defense this fall, but something tells me this record is safe.

4. Dominating Daniel Baker: Kevin Sumlin has put some impressive offenses on the field, but none have had quite as good of a day as the Aggies did against Daniel Baker College back in 1920. Texas A&M set a school record with 110-0 victory in that contest, which kicked off a 6-1-1 season during which the Aggies allowed just one touchdown in a 7-3 loss to Texas in the season finale. The modern football game is unlikely to yield a 110-point margin of victory, as coaches seem content to pull their foot off the pedal once they get up by 50 or more points. That could change in the future, but for now the record is safe.

3. Stifling defense: 1939 was a good year for the Texas A&M football program. The Aggies won the AP national championship with a perfect 11-0 record, capped by a 14-13 win against Tulane in the Sugar Bowl. That season, Homer Norton’s defense set an NCAA record by allowing just 1.71 yards per play. The Agggies gave up just 763 yards on 447 plays from scrimmage. More than 75 years later, it remains a number that is unlikely ever to be touched in the Texas A&M record book.

2. “Tank” the workhorse: While Aggies fans may want to forget Darren Lewis for his actions off the field (he’s currently serving a 27-year sentence for armed robbery), the former Texas A&M running back accomplished things that will forever remain in their memories. During his time in College Station (1987-90), Lewis set school records for career rushing attempts (909) and rushing yards (5,012). Both of those records are going to be incredibly difficult to reach, even for a superb four-year starter. But his school record of 27 100-yard rushing games may be the unbreakable one.

1. Johnny Football dazzles: We all know about Johnny Manziel and the impact he had on the college football landscape. The charismatic dual-threat quarterback produced two of the most electric seasons the Texas A&M football program ever has witnessed. Bursting onto the scene in his freshman season in 2012, Manziel immediately started rewriting Aggies records. Among those is his school-record 5,116 yards of total offense in 2012, which including 3,706 passing yards and 1,410 additional yards on the ground. That record may never been broken. But if you take it a step further, that same total is even more unlikely to be broken as the “most total offense by a freshman.”