Short answers, pulled from the story.
Napoleon Bonaparte was estimated to have been 5 feet 2 inches tall in pre-metric system French measures. That measurement equals around 1.67 metres or just under 5 feet 6 inches in imperial measure.
A 2007 study by the University of Central Lancashire concluded the Napoleon complex is a myth. Heart monitors revealed taller men were more likely to lose their tempers and hit back during stick dueling experiments.
Singer-songwriter Mariah Carey referenced the Napoleon complex in her 2009 song Obsessed accusing someone of being all fired up with their Napoleon complex. The track became popular partly because some believed it targeted rapper Eminem who had made disparaging remarks about Carey previously.
Researchers discovered men who were 5 feet 4 inches tall were 50% more likely to show signs of jealousy than men who were 5 feet 10 inches tall. Abraham Buunk served as a professor at the University of Groningen in the Netherlands when he found evidence supporting the concept.
Northern Irish chamber pop band the Divine Comedy released a tongue-in-cheek song called Napoleon complex on their eleventh studio album Foreverland in 2016. That release lampooned the entire concept through musical satire rather than serious analysis.