What does it mean to decorate the wall with a yellow calendar?

1. Wall decoration refers to: building repair, decoration, change of building structure, etc.

In ancient times, it meant to decorate the city wall, but in modern times, it is a good time for building repair, decoration and changing the house structure.

3. The yellow calendar, also known as the old yellow calendar and the imperial calendar, is a perpetual calendar based on the China lunar calendar, which brings good or bad luck every day. According to legend, the yellow calendar was created by Xuanyuan Huangdi, so it is called the yellow calendar. The main content of the Gregorian calendar is the 24 solar terms, as well as daily taboos, branches, values, stars, moon phases, good or bad luck and so on.