Swedish climate change activist Greta Thunberg is Time magazine’s Person of the Year, the magazine announced Wednesday morning.

At 16, she becomes the youngest Person of the Year ever, and only the fifth woman — er, girl; er, female — in the 90-plus years Time has been naming a Man/Woman/Person of the Year.

In the remarkably sexist history of the honor, men have been chosen 66 times, groups of people 21 times and nonhuman entities twice (“the Computer” and “the Endangered Earth”).

House Speaker Nancy Pelosi and U.S. soccer star Megan Rapinoe were also on the shortlist of potential winners. Had one of them been chosen, she would have been the first American woman in more than 80 years.

The last American woman selected, in 1936, was Wallis Simpson — a woman famous for getting divorced and then getting married. Granted, she married the king of England, who abdicated his throne for her in what was a juicy but somewhat singular accomplishment.

But at least the magazine used Simpson’s name; the next year, Soong Mei-ling was selected alongside her husband, Chinese President Chiang Kai-shek, as Man and Wife of the Year. The Wellesley grad was not referred to by name, only as Madame Chiang Kai-shek.

The other women who have been picked by themselves are Queen Elizabeth II in 1952; Corazon Aquino, the Philippines’ first female president, in 1986; and German chancellor Angela Merkel in 2015.

Women have been chosen more often as either named groups (“the Whistleblowers” in 2002) or in unnamed groups of all genders (“the Ebola Fighters” in 2014).

In 1975, “American Women” — all 111 million of them — were chosen because, as Time put it, “enough U.S. women have so deliberately taken possession of their lives that the event is spiritually equivalent to the discovery of a new continent.” Yes, they actually wrote that. A dozen women were profiled as representing this new continent, including first lady Betty Ford, Rep. Barbara Jordan (D-Tex.) and tennis player Billie Jean King.

Thunberg was chosen for starting a global movement of young people striking for action on climate change. Pelosi was shortlisted as she leads House Democrats in a historic effort to impeach President Trump, Time’s 2016 Person of the Year. In 2007, the year Pelosi became the first female speaker, the Person of the Year was Vladimir Putin.

Trump, who was also shortlisted this year, reacted to the news Thursday with a characteristic tweet.

Within minutes, Thunberg had changed her Twitter bio to reflect the president’s comments.

Time invented what was originally Man of the Year by accident in the first week of January 1928. As publisher P.I. Prentice explained later, it was a slow news week, and editors were struggling to come up with someone to grace its cover. Seven months earlier, in May 1927, the magazine had bungled its coverage of aviator Charles Lindbergh’s solo flight across the Atlantic, so someone suggested he receive a new title of Man of the Year, and voilà! Problem solved, award born.

Time changed the Man of the Year title a few times over the years in the rare instance it didn’t give it to a man, and then permanently changed it to Person of the Year in 1999 — 24 years after the discovery of a brand new continent filled with women.

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