Short answers, pulled from the story.
Moscow won the bid to host the 1980 Summer Olympics after receiving 39 votes during the final ballot count at the 75th IOC Session in Vienna on the 23rd of October 1974. Los Angeles received 20 votes and two abstentions were recorded before Moscow was selected as the first Eastern Bloc country to host the Games.
Eighty nations were represented at the 1980 Summer Olympics following a directive from President Jimmy Carter that led to 66 invited countries boycotting the event. This participation level marked the smallest number since 1956 when only 72 countries took part in the Olympic Games.
A 1989 Australian Senate report claimed almost every medal winner used performance-enhancing drugs, while Manfred Donike found 20 percent of specimens showed abnormal testosterone levels. The Soviet Union allegedly interfered with testing protocols through KGB officers posing as anti-doping authorities, and East German women dominated swimming events using state-sponsored doping systems.
Alexander Dityatin became the first athlete to win eight medals across all gymnastics events at any single Olympic Games, while Teófilo Stevenson remained the only boxer to win three consecutive heavyweight titles. Vladimir Salnikov broke the 15-minute barrier in the 1500 metre freestyle, and Miruts Yifter won both the 5,000 metres and 10,000 metres double.
The Official Report stated total expenditures reached US$1,350,000,000 with revenues totaling only US$231,000,000, though the Oxford Olympics Study adjusted this figure to US$6.3 billion in 2015 dollars. Moscow's expenses were less than later Games such as Beijing 2008 which cost US$40,44 billion and Sochi 2014 which cost US$51 billion.