It's about one-tenth as long as a Giant Tortoise's Lifespan.
In other words, 37.5 years is 0.15 times the length of a Giant Tortoise's Lifespan, and the length of a Giant Tortoise's Lifespan is 6.7 times that amount.(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 250 years old 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 190 years as a British colony.
It's about eight-and-a-half times as long as World War I.
In other words, 37.5 years is 8.58 times the length of World War I, and the length of World War I is 0.117 times that amount.(a.k.a. First World War, a.k.a. Great War, a.k.a. World War, a.k.a. War to End All Wars, a.k.a. WWI, a.k.a. WW1) (1914 - 1918)
World War I is considered to have begun with the assassination of Austrian Archduke Franz Ferdinand on June 28th, 1914 and to have lasted until the signing of the armistice with Germany on November 11th, 1918, for a total of 4.37 years. However, the Treaty of Versailles which ended conflicts between the major powers was not signed until June 28th, 1919 and the last formal peace treaties were not signed until August 23rd, 1923 — 4.78 years after the armistice was signed.
It's about eight-and-a-half times as long as The First walk around the world.
In other words, 37.5 years is 8.734 times the length of The First walk around the world, and the length of The First walk around the world is 0.1145 times that amount.(1970 - 1974) (Dave, John, and Peter Kunst) (including time in recovery)
On June 20th, 1970, Dave Kunst set out from Waseca, Minnesota with $1,000 and a mule. Kunst completed his walk around the world (with a 0.3331 years pause following an assault he suffered during the journey) on October 5th, 1974 — 4.293 years.
It's about nine-and-a-half times as long as The Civil War (American).
In other words, 37.5 years is 9.39 times the length of The Civil War (American), and the length of The Civil War (American) is 0.106 times that amount.(a.k.a. War Between the States, a.k.a. the Great Rebellion, a.k.a. the War of the Rebellion) (1861-65) (United States)
The deadliest war in American history, the American Civil War is generally considered to have begun on with the attack on Fort Sumter on April 12th, 1861 and to have lasted until the surrender of Robert E. Lee's army on April 9th, 1865 — 3.99 years. A total of 620,000 American (including Confederate) soldiers are estimated to have lost their lives due to the war.
It's about twelve times as long as The Korean War.
In other words, 37.5 years is 12.14 times the length of The Korean War, and the length of The Korean War is 0.08237 times that amount.(1951-53) (to armistice signing)
The Korean War between North Korea (a.k.a. Democratic People's Republic of Korea, a.k.a. DPRK) and South Korea (a.k.a. Republic of Korea, a.k.a. ROK) began on June 25th, 1950 during the Cold War. The war paused with the signing of an armistice on July 27th, 1953 — 3.088 years — although the war is officially ongoing and marked by occasional border conflicts.
It's about 100 times as long as The First artificial heart patient's survival.
In other words, 37.5 years is 122 times the length of The First artificial heart patient's survival, and the length of The First artificial heart patient's survival is 0.0082 times that amount.(1982) (Dr. Barney Bailey Clark; first permanent, pneumatic device)
On December 2nd, 1982 Dr. William DeVries implanted the first artificial heart into Dr. Barney Bailey Clark, who went on to live for 0.307 years. This early model of the artificial heart was controlled and powered by an external, 146.51 kg (323 lb) machine that Dr. Clark had to cart with him as he moved throughout the hospital.
It's about 150 times as long as The Spanish-American War.
In other words, 37.5 years is 126 times the length of The Spanish-American War, and the length of The Spanish-American War is 0.00794 times that amount.(1898)
The War between Spain and the United States over the liberation of Cuba began on April 25th, 1898 and lasted until the signing of the Treaty of Paris on August 12th, 1898, 0.296 years. The Treaty gave the United States control of Cuba, the Philippines, Puerto Rico, and Guam.