Associated Press

Sen. Rand Paul, R-Ky., didn't break any records with his 13-hour filibuster that ended early Thursday morning, but he did become the first politician to read from a Twitter feed during a filibuster.

Paul started the filibuster, an extended debate aimed at delaying a decision, to block President Barack Obama's nomination for a new CIA head, demanding Obama to promise drones would not be used to kill terrorism suspects who are U.S. citizens.

Speaking for 13 hours seems like a big commitment, but it's a small one compared to previous filibusters. Here are the 6 longest filibusters in U.S. history.

24-hour filibuster against civil rights
Associated Press

Former U.S. Sen. Strom Thurmond for South Carolina holds the record for the longest filibuster.

Then a Democrat, Thurmond spent 24 hours and 18 minutes in a filibuster against the Civil Rights Act of 1957, which he called unconstitutional and "cruel and unusual punishment," according to the Associated Press.

He began speaking at 8:54 p.m. on August 28, 1957 and ended at 9:12 p.m. the next day.

According to the AP, Thurmond did a lot of preparing for the filibuster. He had a good night's rest, a steam bath and a steak before he started. He also brought malted milk tablets and cough drops to the floor to keep himself from losing his voice.

New York Senator sings during filibuster
U.S. Congress

Former U.S. Sen. Alfonse D'Amato, R-N.Y., holds a couple of filibuster records. His most notable filibuster is the second longest and lasted nearly as long as Thurmond's. D'Amato spoke for 23 hours and 30 minutes about an important military bill in 1986.

D'Amato's most recent famous filibuster was in 1992 and lasted for 15 hours and 14 minutes. During the filibuster, D'Amato sang “South of the Border (Down Mexico Way)," according to Politico.

This filibuster was also the second longest solo filibuster, meaning that he talked that whole time without involving any other members.

The filibuster was about plans by a prominent typewriter maker to outsource about 875 jobs to Mexico to lower its wage base and help it compete against lower-priced Japanese imports.

Senator filibusters 22 hours without bathroom break

Sen. Wayne Morse, I-Ore., held out his filibuster for 22 hours and 26 minutes when he tried to block the Tidelands Oil bill in 1953.

Morse still holds the Senate record for the longest filibuster without parliamentary pause. This means he did not leave the room the whole time; he didn't take any bathroom breaks or snack runs, according to a 1957 TIME article.

Senator ends filibuster after drinking bad eggnog

Sen. Robert M. La Follette, Sr., R-Wis., spoke for 18 hours and 23 minutes when he was trying to block a currency bill in 1908. Although his filibuster didn't last for as long as 24 hours, Follette did exhibit endurance during this particular filibuster.

He ended his filibuster because of digestive problems caused by some bad egg nog, according to Senate archives.

Senator filibusters 16 hours over debt ceiling

Sen. William Proxmire. D-Wis.. held a filibuster for 16 hours and 12 minutes when he tried to stop discussion over an increase in the debt ceiling in 1981.

Proxmire also opposed the fact that the national debt had recently reached $1 trillion, and he didn't want it to get any higher, according to History Net.

Proxmire held the filibuster overnight and gave up around 10:30 a.m. the next day.

Senator recites Shakespeare during filibusters
Washington Post

Sen. Huey Long, D-La., opposed bills he thought favored the rich over the poor during the 1930s.

In 1935, he held a filibuster for 15 hours and 30 minutes because he wanted to require Senate confirmation for some New Deal employees, according to the Washington Post.

Long gave an entertaining filibuster that included his reciting Shakespeare and reading out recipes for fried oysters and “pot likkers."