求翻译：它在哈佛大学竟然成为了有史以来最受学生欢迎的公开课，据说30年来已经有140万人修读过该课；作为首个在互联网与电视上免费开放的课程，是什么意思？

It is the history of Harvard University has now become popular among students of public courses, is said to have been 30 years 140 million people read the lesson repair; as the first TV on the Internet with free and open courses

It has gone so far as at Harvard University in its history has become the most welcome by students of public courses, 30 are said to have been 1.4 million people have enrolled in the courses; first as the Internet and television, free and open courses,

It became unexpectedly in Harvard University most has received the student to welcome throughout history to teach a course male, it is said for 30 years already had 1,400,000 people to study this class; As first on Internet and television free opening curriculum,

It should have become the most popular among students at Harvard University open course, 30 years is said to have 1.4 million people enrolled in the class, as first of its kind on the Internet and TV for free and open course

It has even become open class welcomed in Harvard University by students the most since the dawn of human civilization, it is said that 1,400,000 people take this lesson over the past 30 years; As having the free and open course firstly in Internet and TV,