Imperial units commonly used units for length are (li), (tseung/cheung), (tsek/chek), (tsun/chun), (fen/fan) in descending scale order. These units are now rarely used in daily life, the imperial and metric systems being preferred. The imperial equivalents are written with the same basic Chinese characters as the Chinese system. In order to distinguish between the units of the two systems, the units can be prefixed with "Ying" () for the Imperial system and "Wa" () for the Chinese system. In writing, derived characters are often used, with an additional (mouth) radical to the left of the original Chinese character, for writing imperial units.
Imperial Sword Imperial Sword The Imperial Sword () is one of the four most important parts of the Imperial Regalia ("Reichskleinodien") of the Holy Roman Empire. During a coronation, it was given to the emperor along with the Imperial Crown ("Reichskrone"), Imperial Sceptre ("Reichszepter"), and the Imperial Orb ("Reichsapfel"). All four parts of the Imperial Regalia are displayed in the Imperial Treasury at the Hofburg Palace in Vienna, Austria. The Imperial Sword was made for Emperor Otto IV in the twelfth century, possibly for his coronation as King of the Romans in 1198. Its predecessor, the sword of Otto III, is also