Using the process called Intra-cranial Electrophysiology, clinical tests in Boston and New York found that one small part of the brain, known as Broca's area, computes three different language functions, all within a quarter of a second.

VOA: standard.2010.01.28

By 1852-53,Boston and New York think about this--Boston-- although we're getting close to that again Boston and New York had 50% foreign-born populations.

在1852年到1853年间,波士顿和纽约,你们听听这个数据,虽然我们现在又快接近这个比例了,那时移民占据波士顿和纽约人口的50%

耶鲁公开课 - 美国内战与重建课程节选