Pim Mulier's versatility showed itself not only in sports, but also in other social areas. In 1888 he co-founded the
sports magazine Het Sportblad, of which he became the first editor. This was a modern magazine for that time, which was supported by thirty associations. He created this magazine not only to blow his own trumpet, but also to promote organized sport at an administrative level, and in fact, Mulier used the magazine to seek support for the establishment of a new sports association. He was convinced of the need for comprehensive sports organizations so that rules were unified and national and international competitions were possible. That worked as the Dutch Football and Athletics Association was created in the following year in 1889. He also published three influential books on sports at the end of the 19th century:
Wintersport (1893),
Athletiek en Voetbal (1894), and
CricketWinter sports (1897). His second book "Athletics and Football" (Haarlem, 1894) testifies to his love for both sports. The magazine would become the official organ of the NVB. At the turn of the century, Mulier developed ideas on his own initiative for a new bill on
freshwater fisheries. He presented a
sketch to
Cornelis Jacob Sickesz, Director-General of Agriculture, who incorporated Mulier's thoughts into a new law. Shortly afterwards, he published
Vischkweekerij en conservation van den vischstand (Haarlem, 1900). Due to his good background, Pim did not have to work to earn a living, and in fact, he only had one paid job throughout his life. In 1899, he moved to the
Dutch East Indies where he was editor-in-chief of the
Deli Courant for almost six years until 1905. Shortly after his arrival, he founded the soccer club Sportclub Sumatra's Oostkust with two Dutch plantation workers. Contrary to the usual customs in the colony, this association was multicultural. At that time he published on labor conditions in Sumatra and the measures that had to be taken to subjugate and develop that area. In the field of journalism, he had a sharp eye and a skillful pen. He was also skillful in drawing, as evidenced by the many illustrations accompanying his own articles and books. Despite his journalist prowess, he hated interviews all his life, and hence the lack of information about his personal inner workings. In addition to his journalistic activities, he wrote and published several other books under the pseudonym Pim Pernel, which he had used since 1935 as an alias for
Het Vaderland. Under that pseudonym, he wrote travelogues,
Belles-lettres, and newspaper columns in
Handelsblad and
Het Vaderland. In a column to
Flaneur, he campaigned against the "absolute dependency of married women". He found it "nonsensical" that "female people" had fewer rights than men in legal matters. He also advocated women's suffrage and admired the women's rights activists
Aletta Jacobs and
Cornélie Huygens. One of his closest friends was the writer
Arij Prins, who was as enthusiastic about sports as Mulier. After having made a study trip through British India from 1905 to 1907, he returned to the Netherlands in the last year and was approached as an editor for Indies affairs at the
Algemeen Handelsblad. ==Philosophy==