The phrase "are hereby declared" is correct and usable in written English.
It is typically used in formal or legal contexts to announce or establish something officially.
Example: "The following individuals are hereby declared the winners of the competition."
Alternatives: "are officially announced" or "are formally recognized".
On Feb. 20, the council declared: "Any person or Persons, who may have been held in Slavery are, hereby, declared to be forever free".
"The property, real and personal, of all persons in the State of Missouri, who shall take up arms against the United States, or who shall be directly proven to have taken an active part with their enemies in the field, is declared to be confiscated to their public use, and their slaves, if any they have, are hereby declared freemen".
The property, real and personal, of all persons in the State of Missouri who shall take up arms against the United States, and who shall be directly proven to have taken active part with their enemies in the field, is declared to be confiscated to the public use; and their slaves, if any they have, are hereby declared free.
Between these guys' new sound, that Twin Peaks box set we got for Christmas, and our rediscovered love of Docs (you heard us), we are hereby declaring the official arrival of the early-90s revival, in all its red-dyed, mainstream-folks-trying-to-be- dark" glory.
"Satan is hereby declared powerless, no longer ruling over, nor influencing, our citizens.
It provided details about several rules and parliamentary maneuvers that Boehner had allegedly used to control the chamber, and it ended, "Now, therefore, be it Resolved, That the office of Speaker of the House of Representatives is hereby declared to be vacant".
One week later, a "Notice of Violation" letter arrived in the mail — not to the dog's owner, but to Ms. Archer's building, which was "hereby declared to be a public nuisance".
Over the objections of many white officers, Truman signed Executive Order 9981, on July 26 , 1948 which stated, "It is hereby declared to be the policy of the President that there shall be equality of treatment and opportunity for all persons in the armed services without regard to race, color, religion, or national origin".
In the letter was a clipping from the daily bulletin sent out by the commanding officer, which read: Off Limits: -The house of prostitution in the city of Fortaleza, known as the "New Yorker," is hereby declared "Off Limits" to all American Army, Navy, and civilian personnel".
It is hereby declared that the responsivity of device 1 (S1336-44BK, a commercial Si-PIN detector) is re-plotted based on the public Website of Hamamatsu Photonics Company [27], and the responsivity of Device 2 (Si-PIN detector) with black silicon formed on the back surface is also re-plotted based on the reference [28].
