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Luis von Ahn - Wikipedia
Meet Luis von Ahn, the Guatemalan immigrant behind the …
Meet Luis von Ahn: 43-year-old 'genius' behind language app …
Luis von Ahn | The National Inventors Hall of Fame
Luis von Ahn - Lemelson
Luis von Ahn | Speaker - TED
The man teaching 300 million people a new language - BBC News
Luis von Ahn - CMU School of Computer Science
The man teaching 300 million people a new language - BBC
Human Computation Pioneer Luis von Ahn | Lemelson Center …