Ang Bayan was founded by CPP Founding Chairman Jose Maria Sison, under the nom de guerre Amado Guerrero on May 1, 1969, following the events of the First Great Rectification Movement and the formation of the New People's Army. Guerrero saw the need for a periodical to propagate the Party's basic principles and program for revolution.
Ang Bayan was first published every few months on mimeograph and consisted of four sections: editorials, local news, international news, and CPP documents. Its first issue was published in Central Luzon. From its inception until 1975, Guerrero served as the editor-in-chief of the paper, while also contributing heavily to the articles being published.
From 1969 to 1972, Ang Bayan served chiefly as the vehicle for the theoretical foundations of the CPP. Its news articles, through Guerrero's writing, also defied conventional journalistic convention and were politically loaded. It also defied conventions in construction of leads, writing reports, and so on, owing to the volunteer nature of the publication, its purpose as a propaganda tool, and Guerrero's own lack of experience as a journalist.
In 1976, editorship passed on to Antonio Zumel, a veteran journalist and organizer. Zumel was President of the National Press Club from 1969 to 1971 until he was forced underground due to the declaration of martial law in 1972. Zumel instituted reforms in the Ang Bayan and expanded the editorial team, getting other veteran journalists to write with him. Guerrero's involvement was lessened but he still played a key role in guiding the political line of the publication.
Under Zumel, Ang Bayan was published biweekly. The birth of Rebolusyon, the CPP's theoretical journal, also freed Ang Bayan from theoretical discussions which were the norm under Sison. Writers for regional publications were also deputized as Ang Bayan correspondents under Zumel. Zumel also ensured that style conventions and basic journalistic principles were followed in news published by Ang Bayan. He also introduced soft news and human-interest stories in the publication.
In 1998, Ang Bayan was being published quarterly. A decision was made and the publication began to be published online through the National Democratic Front's official website. Gregorio Rosal, or Ka Roger, headed the shift in online work. By 2001, issues of Ang Bayan were being published along with statements from the CPP, NPA, and NDF through its website, Philippine Revolution Web Central. This also allowed Ang Bayan to be published more frequently, owing to the ease of news-gathering and access, leading to the present schedule of bimonthly publication.