September 11, 1980

1980Antônio Pizzonia, Brazilian racing driver^[†]

Antônio Reginaldo Pizzonia Júnior is a Brazilian professional racing driver who has raced in Formula One and the Champ Car World Series. Born in Manaus, he started his car racing career in the Formula Vauxhall Junior series in 1997 and then progressed through various junior formulae, winning the Formula Vauxhall Junior Winter Festival in 1997, the Formula Vauxhall Junior and Formula Renault Winter Festival in 1998, the Formula Renault 2.0 UK in 1999, and the British Formula 3 Championship in 2000.

1980A new constitution of Chile is established under the influence of then Chilean dictator Augusto Pinochet, which is subject to controversy in Chile today.^[†]

The Political Constitution of the Republic of Chile of 1980 is the fundamental law in force in Chile. It was approved and promulgated under the military dictatorship headed by Augusto Pinochet, being ratified by the Chilean citizenry through a referendum on September 11, 1980, although being held under restrictions and without electoral registers. While 69% of the population was reported to have voted yes, the vote was questioned by hundreds of denunciations of irregularities and fraud. The constitutional text took effect, in a transitory regime, on March 11, 1981, and then entered into full force on March 11, 1990, with the return to electoral democracy. It was amended for the first time in 1989, and afterward in 1991, 1994, 1997, each year from 1999 to 2001, 2003, each year from 2007 to 2015, and each year from 2017 to 2021, with the last three amendments concerning the constituent process of 2020–2022. In September 2005, under Ricardo Lagos's presidency, a large amendment of the Constitution was approved by parliamentarians, removing from the text some of the less democratic dispositions coming from Pinochet's regime, such as senators-for-life and appointed senators, as well as the armed forces' warranty of the democratic regime.