十九世紀末，土生葡人徐薩斯陸續在香港的《中國評論》發表有關澳門歷史的研究文 章，二十世紀初，又相繼出版《歷史上的澳門》和《歷史上的上海》等多本著作，成為知名的歷 史學家。第一次世界大戰期間，他遠赴歐美各國，參加協約國的戰時宣傳、出版工作。1926 年，他在當年再版的《歷史上的澳門》一書中，抨擊澳葡政府導致澳門衰落，倡議將澳門交給國 聯託管。澳門政府隨即出動警察，查禁該書。徐薩斯避居香港，在當地英文報刊發表抗議文章， 並在1928年親自到澳門法院作抗訴申辯，表明此案不過是澳葡政府為了掩蓋其腐敗無能而進行的政治迫害。

Mr. Montalto de Jesus began publishing Macao historical treatises on The China Review, a comprehensive academic journals in English in Hong Kong, at the end of the 19th century. He published “the history of Macao” and “Historic Shanghai” and other books in the early 20th century, then became a well-known historian. During World War I, he went to Europe and the United States, participating in the Allied wartime propaganda and publishing works. In the second edition of “Macao history” in 1926, he criticized the Portuguese government for leading to the decline of Macao and proposed that Macao’s future should be controlled by the League of Nations. The Portuguese government immediately dispatched policemen to confiscate the book. Montalto de Jesus fled to Hong Kong and expressed his angry protests in local English newspapers. In 1928, he defend himself in Macao court and claimed that the case was nothing but a political persecution conducted by the Portuguese government to cover up its corrupt and incompetent governance.