Happy Days - book - was created in 1995.
Happy Days was created on 1974-01-15.
Trigger Happy - book - was created in 2000.
Happy Past Days was created on 2000-03-23.
Those Happy Days was created on 1914-07-23.
Holly Happy Days was created on 2010-10-12.
Happy Days Are Here Again was created in 1965-03.
Malgudi Days - book - was created in 1943.
Book of Days - song - was created in 1992.
A Thousand Days - book - was created in 1965.
Happy Days - Ai Otsuka song - was created on 2004-07-07.
The Book of Dead Days was created on 2003-07-17.
The Celtic Book of Days was created on 1998-02-10.