It means that company or thing has been in business or existed for more than a 1000 years.
An 150 year celebration is called a Sesquicentennial celebration
A 100 year celebration is called a centennial celebration.
60 year celebration
1000 days
About a 1000
It is called a "centennial celebration"
55th wedding celebration is Emerald.
An 150 year celebration is called a Sesquicentennial celebration
A Vietnamese new year celebration.
end of the year celebration means its the last day to spend time with this old year, old life and time to start a new year and a new life.
A 400 year celebration.
Centennial