Question: When did Burma change its name to the country that is the natural boundary between the country that hosted the tournament and the country where A Don is located?

Knowledge 1: A Don
A Don is a village in south-eastern Laos near the border with Vietnam. It is located in Kaleum District in Sekong Province. [SEP] Knowledge 2: Geography of Myanmar
Myanmar (also known as Burma) is the northwestern-most country of mainland Southeast Asia, bordering China, India, Bangladesh, Thailand and Laos. It lies along the Indian and Eurasian Plates, to the southeast of the Himalayas. To its west is the Bay of Bengal and to its south is the Andaman Sea. It is strategically located near major Indian Ocean shipping lanes. [SEP] Knowledge 3: Myanmar
In 1988, unrest over economic mismanagement and political oppression by the government led to widespread pro-democracy demonstrations throughout the country known as the 8888 Uprising. Security forces killed thousands of demonstrators, and General Saw Maung staged a coup d'état and formed the State Law and Order Restoration Council (SLORC). In 1989, SLORC declared martial law after widespread protests. The military government finalised plans for People's Assembly elections on 31 May 1989. SLORC changed the country's official English name from the "Socialist Republic of the Union of Burma" to the "Union of Myanmar" in 1989. [SEP] Knowledge 4: 2020 AFC U-23 Championship qualification
Of the 47 AFC member associations, a total of 44 teams entered the competition. The final tournament hosts Thailand decided to participate in qualification despite having automatically qualified for the final tournament.
Knowledge 1: A Don
A Don is a village in south-eastern Laos near the border with Vietnam. It is located in Kaleum District in Sekong Province. [SEP] Knowledge 2: Geography of Myanmar
Myanmar (also known as Burma) is the northwestern-most country of mainland Southeast Asia, bordering China, India, Bangladesh, Thailand and Laos. It lies along the Indian and Eurasian Plates, to the southeast of the Himalayas. To its west is the Bay of Bengal and to its south is the Andaman Sea. It is strategically located near major Indian Ocean shipping lanes. [SEP] Knowledge 3: Myanmar
In 1988, unrest over economic mismanagement and political oppression by the government led to widespread pro-democracy demonstrations throughout the country known as the 8888 Uprising. Security forces killed thousands of demonstrators, and General Saw Maung staged a coup d'état and formed the State Law and Order Restoration Council (SLORC). In 1989, SLORC declared martial law after widespread protests. The military government finalised plans for People's Assembly elections on 31 May 1989. SLORC changed the country's official English name from the "Socialist Republic of the Union of Burma" to the "Union of Myanmar" in 1989. [SEP] Knowledge 4: 2018 FIFA World Cup
2018 FIFA World Cup Чемпионат мира по футболу 2018 (Chempionat mira po futbolu 2018) Tournament details Host country Russia Dates 14 June -- 15 July Teams 32 (from 5 confederations) Venue (s) 12 (in 11 host cities) ← 2014 2022 →
Knowledge 1: A Don
A Don is a village in south-eastern Laos near the border with Vietnam. It is located in Kaleum District in Sekong Province. [SEP] Knowledge 2: Geography of Myanmar
Myanmar (also known as Burma) is the northwestern-most country of mainland Southeast Asia, bordering China, India, Bangladesh, Thailand and Laos. It lies along the Indian and Eurasian Plates, to the southeast of the Himalayas. To its west is the Bay of Bengal and to its south is the Andaman Sea. It is strategically located near major Indian Ocean shipping lanes. [SEP] Knowledge 3: Names of Myanmar
The official English name was changed by the country's government from the ``Union of Burma ''to the`` Union of Myanmar'' in 1989, and still later to the ``Republic of the Union of Myanmar '', which since then has been the subject of controversies and mixed incidences of adoption. [SEP] Knowledge 4: 2026 FIFA World Cup
The FIFA Council went back and forth between 2013 and 2017 on limitations within hosting rotation based on the continental confederations. Originally, it was set that bids to be host would not be allowed from countries belonging to confederations that hosted the two preceding tournaments. It was temporarily changed to only prohibit countries belonging to the confederation that hosted the previous World Cup from bidding to host the following tournament, before the rule was changed back to its prior state of two World Cups. However, the FIFA Council did make an exception to potentially grant eligibility to member associations of the confederation of the second - to - last host of the FIFA World Cup in the event that none of the received bids fulfill the strict technical and financial requirements. In March 2017, FIFA president Gianni Infantino confirmed that ``Europe (UEFA) and Asia (AFC) are excluded from the bidding following the selection of Russia and Qatar in 2018 and 2022 respectively. ''Therefore, the 2026 World Cup could be hosted by one of the remaining four confederations: CONCACAF (North America; last hosted in 1994), CAF (Africa; last hosted in 2010), CONMEBOL (South America; last hosted in 2014), or OFC (Oceania, never hosted before), or potentially by UEFA in case no bid from those four met the requirements.

Answer: 1989