In 677 (during the reign of Emperor Gaozong), Chen Zheng (), together with his son Chen Yuanguang (), led a military expedition to pacify the rebellion in Fujian. They settled in Zhangzhou and brought the Middle Chinese phonology of northern China during the 7th century into Zhangzhou; In 885, (during the reign of Emperor Xizong of Tang), the two brothers Wang Chao () and Wang Shenzhi (), led a military expedition force to pacify the Huang Chao rebellion. They brought the Middle Chinese phonology commonly spoken in Northern China into Zhangzhou. These two waves of migrations from the north generally brought the language of northern Middle Chinese into the Fujian region. This then gradually evolved into the Zhangzhou dialect.
Who was the ruler of China in 885?
Emperor Xizong of Tang

The official Cubs team mascot is a young bear cub, named Clark, described by the team's press release as a young and friendly Cub. Clark made his debut at Advocate Health Care on January 13, 2014, the same day as the press release announcing his installation as the club's first ever official physical mascot. The bear cub itself was used in the clubs since the early 1900s and was the inspiration of the Chicago Staleys changing their team's name to the Chicago Bears, due to the Cubs allowing the football team to play at Wrigley Field in the 1930s.
What is the official Cubs team mascot?
a young bear cub

The risk of reactivation increases with immunosuppression, such as that caused by infection with HIV. In people coinfected with M. tuberculosis and HIV, the risk of reactivation increases to 10% per year. Studies using DNA fingerprinting of M. tuberculosis strains have shown reinfection contributes more substantially to recurrent TB than previously thought, with estimates that it might account for more than 50% of reactivated cases in areas where TB is common. The chance of death from a case of tuberculosis is about 4% as of 2008, down from 8% in 1995.
New studies have found that half of reactivation cases of tuberculosis might actually be due to what other "re-" word?
reinfection