It's not all that weird though. Until the 1970's we had (in NL) 127 in some and 220v in other places which could either be 127v to ground, 220v to ground or 220

It's not all that weird though. Until the 1970's we had (in NL) 127 in some and 220v in other places which could either be 127v to ground, 220v to ground or 220v line-to-line. By around mid 2000's everything was switched to 230/400v for standardization in Europe, so it's not that long ago we still had some lower voltages.