Modern lore has it that Mao Zedong’s eldest son, who was killed in a United Nations airstrike during the Korean War, had given away his position by firing up a stove to make egg fried rice.

That story didn’t sit right with the Chinese Academy of History, launched two years ago by Chinese leader Xi Jinping to counter negative views of the ruling Communist Party’s past.

In November, on the 70th anniversary of Mao Anying’s death, the academy served up another version. Citing what it said were declassified telegrams and eyewitness accounts, the academy said in a social-media post that Mao was killed after enemy forces detected radio transmissions from his commander’s headquarters.

“These rumormongers have tied up Mao Anying with egg fried rice, gravely dwarfing the heroic image of Mao Anying’s brave sacrifice,” said the post, which has attracted about 1.9 million views. “Their hearts are vicious.” The academy attributed the egg fried rice story to the 2003 edition of a Chinese military officer’s memoir. It didn’t mention the book was published by the Chinese military’s official press.