The latest Venezuelan effort to topple dictator Nicolás Maduro is a pivotal moment in Latin American history, as the international community is acknowledging.

Democratically elected National Assembly President Juan Guaidó took an oath to become Venezuela’s interim president on Wednesday, as prescribed by the country’s constitution. Within hours he was recognized by the U.S. and some 20 other democracies, 11 in Latin America. Other governments warned Mr. Maduro that he has to leave.

More than words are at work. Last week the Bank of England blocked Mr. Maduro from withdrawing $1.2 billion in gold reserves. On Friday the U.S. gave Mr. Guaidó control of Venezuelan government accounts at the Federal Reserve Bank of New York and other U.S.-insured banks.

Not since the fall of the Soviet empire has a nation risen with such fury and determination to throw off the yoke of socialism. And not since then has Marxist misery been so clear for all the world to see. Venezuelans are experiencing what millions of Russians, Chinese, Cubans and countless others have suffered. Destitute and angry, they want it to end.

How ironic that some American politicians, like Vermont Sen. Bernie Sanders and newly elected New York Democratic Rep. Alexandria Ocasio-Cortez want socialism for the U.S. The tide of history is going the other way.