Solar Cycle

Solar Cycle, a period of 28 years, within which the first day of the year passes successively through the same sequence of week-days.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Solano * Solar Myth
[wait for the fun]
Socrates
Socrates, Apology of
Socrates
Sodom and Gomorrah
Sofala
Sofia
Sofronia
Soissons
Sokoto
Solano
Solar Cycle
Solar Myth
Solar Year
Soldan
Solecism
Solemn League and Covenant
Solent
Soleure
Solfata`ra
Solferino
Solidarity