Expression of the date in Englis

英式：day-month-year format

-On 20 January 2020

美式：mouth-day-year format

-On January 20, 2020,(cardinal numbers)

介词of格式: On the 20th of January 2020 (ordinal numbers)

E.g. How fortunate that the world did not end on Friday, December 21, 2020.

E.g. Monday, May 5, is my lost day of work.

世纪,

in the eighteen hundreds.

in the nineteenth century.

the nineties   

90s

1990s

90年代