Star Trek: Ships of the Line (2001)
Star Trek: Ships of the Line (2001) is the first edition of the Star Trek: Ships of the Line calendar series. Published for , the calendar in a landscape format that later became a staple of the series. Events depicted in this calendar (like the rest of the series) are not considered to be canon.

Months
January – The  on assignment monitoring late 20th century Earth.
February – Captain Jean-Luc Picard, against orders, takes the  into battle against the Borg.
March – The then-experimental starship Defiant departs Deep Space 9 on an early, and still classified, mission.
April – A rare, serene moment for the crew of the starship Voyager is shattered by warring tribes on the planet below.
May – The starship Farragut, a  ship, on routine patrol along the Cardassian border.
June – Birds-of-Prey prepare for an exhaustive day of Klingon war games at an undisclosed location within the Empire.
Center – For more spectacular images make sure to get the book [Star Trek: The Unseen Frontier] Declassified Images from the History of the Federation from Pocket Books, Winter 2001.
July – An unexpected ally escorts the USS Voyager through Borg space as a condition of their infamous – albeit temporary – alliance.
August – The prototype  moments before being commandeered by a Romulan crew.
September – The Defiant shuttlecraft Chaffee during a routine mission cataloging gaseous anomalies inside the Badlands.
October – Romulan Warbirds attack the Klingon outpost at Khitomer, sparking an interstellar incident.
November – Captain Benjamin Sisko literally plows through Dominion forces in a bold maneuver that earned the name "Sisko's Run."
December – What appears to be the starship Voyager crashes into the surface of a Class L planet, mere parsecs away from the Alpha Quadrant.

Further reading
"Star Trek 'Ships of The Line' Calendar", , December 2000, pp. 82-83
"Ships of the Line", Star Trek: The Official Starships Collection, Bonus Issue 12, 2019, pp. 10-11

Calendars