[September 6th, 1921] A New York City daily newspaper, the "New York World" began its exposé of the Ku Klux Klan. The series ran for 21 consecutive days, finishing on September 26, and was picked up by 15 major U.S. newspapers.
from /r/100yearsago
[1921年9月6日]纽约市的一份日报《纽约世界报》开始对三K党进行揭露。该系列报道连续进行了21天，于9月26日结束，并被美国15家主要报纸采用。