The Chargers defeated the Kansas City Chiefs 37-20 and started the season with a 3-1 record for the second consecutive year. San Diego forced the Chiefs into six turnovers, and they led 20-0 in the second quarter. Rivers completed 18 of 23 passes for 209 yards and two touchdown passes, but threw one interception in the red zone. Jackie Battle started at running back instead of Mathews. Battle was in 27 plays compared to Mathews' 21, and he had 15 carries for 39 yards with a team-high four catches for 42 yards. Most of Mathews work was in the fourth quarter when San Diego's victory was mostly already decided. U-T San Diego wrote that Mathews would have been expected to start were it not for his fumble against Atlanta the prior week. Nick Novak filled in for kicker Nate Kaeding, who was out with a groin injury, and made all three of his field goals.

How many points did the Chiefs win by?
A: 17

Trying to end a four-game losing streak, the Raiders went home for a Week 13 fight with the Houston Texans. In the first quarter, Oakland trailed early with DB Demarcus Faggins returning a fumble 58 yards for a touchdown, along with the score of the period. In the second quarter, the Raiders climbed back into the game and into the lead with RB Justin Fargas' 3-yard TD run, along with MLB Kirk Morrison returning a fumble 35 yards for a touchdown. In the third quarter, Oakland's lead vanished with RB Wali Lundy's 3-yard TD run for the only score of the period. In the fourth quarter, the Texans wrapped up the game with kicker Kris Brown nailing a 42-yard, a 47-yard, and a 39-yard field goal. The Oakland Raiders secondary (which is ranked #1 in the NFL) held the Texans to 5 yards passing, yet the Raiders were unable to pull out the win. With their fifth-straight loss, the Raiders fell to 2-10.

How many defensive touchdowns were there in the game?
A: 2

In Britain, free trade became a central principle practiced by the repeal of the Corn Laws in 1846. Large-scale agitation was sponsored by the Anti-Corn Law League. Under the Treaty of Nanking, China opened five treaty ports to world trade in 1843. The first free trade agreement, the Cobden-Chevalier Treaty, was put in place in 1860 between Britain and France, which led to successive agreements between other countries in Europe. Many classical liberals, especially in 19th and early 20th century Britain and in the United States for much of the 20th century , believed that free trade promoted peace. Woodrow Wilson included free-trade rhetoric in his "Fourteen Points" speech of 1918:

Which happened first, the repeal of the Corn Laws or China opening five ports to world trade?
A:
China opened five treaty ports