Title: Philippine two-peso coin
Content:  The Philippine two-peso coin (₱2) was a denomination of Philippine currency. It was minted by the Bangko Sentral ng Pilipinas from 1983 to 1994 and was demonetized in 1998.
Title: 2nd Supreme People's Assembly
Content:  The 2nd Supreme People's Assembly (SPA) in North Korea was elected on 27 August 1957 and convened for its first session on 18–20 September 1957. It was replaced on 23 October 1962 by the 3rd Supreme People's Assembly.
Title: 2nd Naval Armaments Supplement Programme
Content:   The 2nd Naval Armaments Supplement Programme (マル2計画, 第二次補充計画) otherwise known as the "Circle Two" Plan was the second of four expansion plans of the Imperial Japanese Navy between 1930 and the start of World War II.
Title: Japanese submarine I-2
Content:  On 7 July 1937 the first day of the Marco Polo Bridge Incident took place, beginning the Second Sino-Japanese War. On 28 July 1937, I-2′s division, Submarine Division 7, was assigned to Submarine Squadron 1 in the 1st Fleet, and in September 1937 Submarine Squadron 1 was reassigned to the 3rd Fleet which in turn was subordinated to the China Area Fleet for service in Chinese waters. The squadron, consisting of I-2, her division mate I-1, and the submarines, , , and , deployed to a base at Hong Kong with the submarine tenders and  in September 1937. From Hong 
Title: Philippine two-peso coin
Content: Flora and Fauna Series; In 1983, the BSP introduced ₱2 coins as part of the Flora and Fauna Series. The coin was decagon-shaped (ten-sided), mass 12.0 g and diameter 31.0 mm, with the profile of Andrés Bonifacio on the obverse and the Coconut Tree (Cocos nucifera) on the reverse. ; Improved Flora and Fauna Series; The coin features the same designs on both the obverse and reverse, but was reduced in mass to 5.0 g, reduced in diameter to 24.0 mm, made circular in shape, and was minted in Stainless steel instead of Copper-Nickel. ; BSP Series; The two-peso coin was not included when the BSP Series was introduced. ; 1998: The ₱2 coin and other coins in the original Flora and Fauna and Improved Flora and Fauna Series were withdrawn, making the coin officially demonetized. 
Title: Second Sino-Japanese War
Content:  The Second Sino-Japanese War (1937–1945) was a military conflict that was primarily waged between the Republic of China and the Empire of Japan. The war made up the Chinese theater of the wider Pacific Theater of the Second World War. The beginning of the war is conventionally dated to the Marco Polo Bridge Incident on 7 July 1937, when a dispute between Japanese and Chinese troops in Peking escalated into a full-scale invasion. This full-scale war between the Chinese and the Empire of Japan is often regarded as the beginning of World War II in Asia. In 2017 the Ministry of 
Title: 2nd Standing Committee of the Supreme People's Assembly
Content:  The 2nd Standing Committee of the Supreme People's Assembly (SPA) was elected by the 1st Session of the 2nd Supreme People's Assembly on 20 September 1957. It was replaced on 23 October 1962 by the 3rd SPA Standing Committee.
Title: Japanese submarine I-122
Content:  On 7 July 1937 the first day of the Marco Polo Bridge Incident took place, beginning the Second Sino-Japanese War. In September 1937, Submarine Division 13, consisting of I-22 and her sister ship I-21, moved to a base at Tsingtao, China, and began operations in northern Chinese waters as part of a Japanese blockade of China. In December 1937, the light cruiser arrived at Tsingtao to serve as flagship of Submarine Squadron 3, which consisted of I-21, I-22, I-23, and I-24. I-21 and I-22 received orders to provide distant cover for Kuma while she put a Special Naval Landing Force (SNLF) unit ashore off Chefoo, China, on 3 February 1938, but both submarines experienced engine trouble that prevented them from getting underway to support Kuma. The two submarines had greater success on 22 March 1938, when they landed 30 Shanghai-based SNLF troops on Liukung Island in Weihai Bay. I-22 was renumbered I-122 on 1 June 1938, freeing up her previous number for the new submarine, which was launched that year. In an effort to reduce international tensions over the conflict in China, Japan withdrew its submarines from Chinese waters in December 1938, and I-122 returned to Japan.
Title: Submarine Squadron 2
Content:  Submarine Squadron 2 started World War II at Mariveles Naval Section Base in the Philippines as part of the United States Asiatic Fleet. It was equipped with 12 Salmon class submarines. Following the end of World War II, Submarine Squadron Two was established in October 1945 at the Naval Submarine Base New London in Groton, Connecticut under the command of Captain L. S. Parks, USN. The squadron was based in Groton throughout its subsequent history. It was a subordinate command of Submarine Group 2 (designated as Submarine Flotilla 2 prior to the mid-1970s). During the course of its history, SUBRON 2 had 
Title: Philippine twenty-peso note
Content:  In 1973, the "Ang Bagong Lipunan" text was added and was overprinted on the watermark area.

Question: what year did super mario bros 2 come out?
Answer: Zilog Z80.