"Time is a weekly news magazine founded by Briton Hadden and Henry R. Luce. Time’s current circulation is about 4.3 million. In 1981 its advertising revenues were up 13 percent to $ 245.3 million, the highest in the US. Time summarizes the news concisely and completely, gives background, organizes and departmentalizes the news each week. It covers national and foreign affairs, books, art, theatre, cinema, music, education, religion, medicine, law, science, finance, sports, press and milestones. And it so did with unquestionable success."
How to understand the sentence in bold??? What is the exact usage of "so " in that part????
And it so did with unquestionable success."
Are you sure it wasn't: And it did so with unquestionable success.