The X-class was a 4-man midget submarine built for the British Royal Navy between 1943-44. You can read more about its history at the Wiki entry link below.
Until 1959, the Triton, one of the first-generation Nuclear subs was the longest, and the first US submarine to have two independent reactors. She measured 447 ft 6 in (136.40 m) overall. Then, the longest current class of submarine, the Ohio-class, at 560 ft (170 m), was built, and is now the longest submarine in the US Navy.
WWII US Gato class subs could be built in 9 months.
Beluga class submarine was created in 1988.
The US Gato class sub could be built in less than 9 months.
There is NO submarine called 'Typhoon' in the US Navy, nor has there ever been. Typhoon is a Russian nuclear submarine. -The current USS Typhoon is a 370 ton Cyclone class patrol launch..
The Kursk was an Oscar II class submarine, of the Russian Navy.
Virginia class
Sarov class submarine was created on 07-08-20.
Virginia class submarine
where was the first submarine built
A TRIDENT Submarine most likely refers to the US Navy's OHIO Class Submarines (18 of these were built) They often bear the name of TRIDENT because they were designed to carry Trident Missiles - a submarine launched intercontinental ballistic missile with nuclear warheads.