1) The ongoing conflict in Syria, which began in 2011, has resulted in a humanitarian crisis, displacement of millions of people, and international efforts to bring about a resolution and provide aid to those affected.

2) The name "Bluetooth" comes from the 10th-century Danish king, Harald Bluetooth, who united Denmark and Norway.

3) The fingerprints of koalas are so similar to humans that they have been mistaken at crime scenes.

4) The most-watched television event in the United States is the Super Bowl, with millions of viewers tuning in each year.