$BenchmarkSystems gives the names of systems for which the MathematicaMark8 benchmark data is known.
EasterSundayGreekOrthodox[year] gives the date of Easter Sunday according to the Greek Orthodox Church using the Gregorian system.
EasterSunday[year] gives the date of Easter Sunday in the Gregorian calendar system.
Friday
(Calendar Package Symbol) Friday is a day of the week.
Monday
(Calendar Package Symbol) Monday is a day of the week.
Saturday is a day of the week.
Sunday
(Calendar Package Symbol) Sunday is a day of the week.
Thursday is a day of the week.
Tuesday is a day of the week.
Wednesday is a day of the week.