It's about one-thirtieth as long as a Giant Tortoise's Lifespan.
In other words, the length of a Giant Tortoise's Lifespan is 29 times 102 months.(for Adwaita, an Aldabra Giant Tortoise) (Dipsochelys dussumieri, formerly Geochelone gigantea)
Adwaita, an Aldabra Giant Tortoise who lived the later part of his life in the Alipore Zoological Gardens in Kolkata, India, was 3,000 months at the time of his death. Once a pet of Major-General Robert Clive, 1st Baron Clive, who is credited with securing India as a colony of Great Britain, Adwaita lived through the entirety of India's 2,300 months as a British colony.
It's about one-tenth as long as Pepi II's reign.
In other words, the length of Pepi II's reign is 10 times 102 months.(a.k.a. Neferkare) (2278 BCE - 2184 BCE)
It's about one-fourth as long as Pius IX's reign.
In other words, 102 months is 0.2684 times the length of Pius IX's reign, and the length of Pius IX's reign is 3.726 times that amount.(a.k.a. Pope Blessed Pius IX, a.k.a. Giovanni Maria Mastai-Ferretti) (1792-1878)
It's about seven-tenths as long as FDR's Presidential Term.
In other words, 102 months is 0.7015 times the length of FDR's Presidential Term, and the length of FDR's Presidential Term is 1.426 times that amount.(a.k.a. Franklin Roosevelt, a.k.a. Franklin Delano Roosevelt) (1933-45)
FDR, the 32nd President of the United States, served from March 4th, 1933 to April 12th, 1945, dying after 145.4 months in office. At the time of his sudden death, Elizabeth Shoumatoff was painting a portrait of Roosevelt which, never finished, now hangs in a museum at the site of Roosevelt's Presidential retreat in Georgia.
It's about nine-tenths as long as King Tut's reign.
In other words, the length of King Tut's reign is 1 times 102 months.(a.k.a. Tutankhamun, a.k.a. Tutankhaten, a.k.a. tVwa:t-ʕa:nəx-ʔaˡma:n) (1333 BCE - 1324 BCE)
Pharaoh of the 18th dynasty, Tutankhamun begin his reign at the age of eight in 1333 BCE and remained pharaoh until 1324 BCE — 100 months later. When artifacts from Tut's tomb were on display at the Metropolitan Museum of Art (New York City, New York) from late 1976 to 1979, they were viewed by an estimated 8 million people.
It's about one-and-one-tenth times as long as The Revolutionary War (American).
In other words, 102 months is 1.014 times the length of The Revolutionary War (American), and the length of The Revolutionary War (American) is 0.9862 times that amount.(a.k.a. American War of Independence) (1775-83)
It's about one-and-one-third times as long as The Construction of the Chunnel.
In other words, the length of The Construction of the Chunnel is 0.7519 times 102 months.(a.k.a. Channel Tunnel, a.k.a. Le tunnel sous la Manche) (1987 thru 1994) (Folkstone, Kent, UK to Coquelles, Pas-de-Calais, France)