Do'ar HaYom was founded in Jerusalem by a group of activists native to the region who opposed the growing Russian-Jewish influence on Haaretz, and believed there was little passion behind their journalism.

[5] The project was headed by Itamar Ben-Avi, the son of Eliezer Ben-Yehuda, who began his career in editing under his father's papers prior to World War I.

Many journalists who would become quite influential in Israel began their careers at the newspaper, including Uri Keisari [he], who was their correspondant in Paris and editorial secretary, Oved Ben-Ami, who was a reporter in Petah Tikvah, Aharon Even [he] for the Upper Galilee, Issachar-Dov Bar-Drora [he], who served as the editor-in-chief, and Ovaida Kimhi [he], a French translator.

[7] Karniel, a member of the Zikhron Ya'akov colony, and began his career at HaZvi, wrote a weekly satirical section from 1920 to 1928 under the title "Through the Disguise of Lessons in Looking" under his pseudonym of "Azmot".

In the early 1930s, when Ben-Avi returned as an editor, he was co-appointed to manage the newspaper, and wrote articles on current affairs until his retirement in August 1933.

Moshe Carmon, a scholar and member of the editorial team stated that Ben-Avi was "all patient and free, and instilled a spirit of pluralism."

In March 1921, after a harsh critique of Menachem Ussishkin was published, many leaders of the Zionist movement, including Yosef Klausner,[12] Chaim Arlozorov, Yitzhak Ben-Zvi, Boris Schatz, and David Yellin, issued a statement against the newspaper, accusing them of spreadhing misinformation.

The transfer did not go according to plan, and after the reorganization of the paper under the movement of Revisionist Zionism,[16] Ben-Ami, who was entitled to publish as many personal articles as he wanted, encountered opposition from the new editors hired by Jabotinsky, and was attacked publicly.

Bnei Binyamin [he], an association that Ben-Avi lead, sent "a strong spirited and well-armed group of youths" to Jerusalem in order to physically remove the current staff from the office.

The police failed to find their bodies, and the newspaper presented the investigation as evidence of the failures of the Jewish Agency for Israel, which it claimed had "bowed down" to the authorities.