1 Moctezuma II (c. 1460â1520), ninth Aztec emperor, killed during the Spanish conquest of Mexico, after he was captured by Conquistador Hernan HernÃ¡n. 2  Cortes CortÃ©s, pedro moctezuma Son OF. 3  Montezuma Ii (isabelâmoctezuma/1509â1550/1510), 1550 1551 Daughter OF.  montezuma ii
The present USA voltage standard range is 120/240VAC 60Hz at +-5%, and has been for many years. There are exceptions to this in large buildings, where polyphase systems are sometimes used, but standard single phase residential and light commercial is all 120/240 service. We haven't had 110/220 for well over 60 years.
First of all, the mains voltage is different in Europe and US. In the US, typical mains voltage is 120 V. In Europe, on the other hand, the voltage is typically 230 V. Also, while the mains frequency in Europe is typically 50 Hz, in the US it is 60 Hz. Most devices donât care about the mains frequency.