Chinese/Vietnamese zodiac years

For 1973, 1977 and 1981, they are US presidential inauguration years of unique traits.

1973 is the year of the Ox, which, using 2 letters, has the shortest letter count of any Chinese zodiac in English.

The Buffalo, using 7 letters, is tied with the Rooster for the longest letter count of a Vietnamese zodiac being written in English.

If Water is added, the Water Buffalo has 12 letters, the longest of a Vietnamese zodiac in English.

Saturday, which delivers the most syllables of all the 7 days of every week (3), is when 1977 began on January 1 and ended on December 31, an eight-letter day.

Thursday is an eight-letter day when 1981 began on January 1 and ended on December 31, in a similar manner to Saturday when 1977 began on January 1 and ended on December 31.

Whereas Saturday has the most syllables of all the 7 days of every week (3), Thursday has 2.

Besides, 1977 has 7 syllables, making it the year with the most pronunciations of the 20th century.

1981 is the year of the Rooster, which, using 7 letters, has the most letters of any Chinese zodiac being written in English.

The Rooster, using 7 letters, is tied with the Buffalo for having the longest letter count of a Vietnamese zodiac being written in English.

Using the format "nineteen seventy three/seven/eight," 1973, 1977 and 1978 have 20 letters, tied for having the most letters of any year name of the 20th century.

In spaces/hyphens, 1973, 1977 and 1978 have 22 characters, tied for a record in the 20th century.