Muhamed was a German horse reportedly able to mentally extract the cube roots of numbers, which he would then tap out with his hooves.
https://en.wikipedia.org/wiki/Muhamed_(horse)
https://en.wikipedia.org/wiki/Muhamed_(horse)
Wikipedia
Muhamed (horse)
German horse with claimed mathematical ability
Proper Cantonese pronunciation (Chinese: 粵語正音運動; Jyutping: jyut6 jyu5 zing3 jam1 wan6 dung6) is a campaign in Hong Kong started from the 1980s and led by scholar Richard Ho (何文匯) to promote the "proper pronunciation" in the Cantonese language. The prescriptive nature of the campaign has led to controversies.
The very idea of proper pronunciation of Cantonese is controversial, since the concept of labeling native speakers' usage and speech in terms of correctness is not generally supported by linguistics. Law et al. (2001) point out that the phrase 懶音 laan5 jam1 "lazy sounds," most commonly discussed in relation to phonetic changes in Hong Kong Cantonese, implies that the speaker is unwilling to put forth sufficient effort to articulate the standard pronunciation.
https://en.wikipedia.org/wiki/Proper_Cantonese_pronunciation
The very idea of proper pronunciation of Cantonese is controversial, since the concept of labeling native speakers' usage and speech in terms of correctness is not generally supported by linguistics. Law et al. (2001) point out that the phrase 懶音 laan5 jam1 "lazy sounds," most commonly discussed in relation to phonetic changes in Hong Kong Cantonese, implies that the speaker is unwilling to put forth sufficient effort to articulate the standard pronunciation.
https://en.wikipedia.org/wiki/Proper_Cantonese_pronunciation
Wikipedia
Proper Cantonese pronunciation
movement to teach "correct" Cantonese pronunciation in Hong Kong