What now is known as "The Chicago Manual of Style" was first published in 1906 under the title "Manual of Style: Being a compilation of the typographical rules in force at the University of Chicago Press, to which are appended specimens of type in use". From its first 203-page edition, the "CMOS" evolved into a comprehensive reference style guide of 1,146 pages in its 17th edition. It was one of the first editorial style guides published in the United States, and it is largely responsible for research methodology standardization, notably citation style.