> 
20 PHILOSOPHICAL SOCIETY OF WASHINGTON. 
Paschal full moon = March (21 + 28 =) 49 
== April (49 — 31 =) 18 
Le -( +2(3), is ae (a). ) 
= 
= (2H ¢=I= 8) G2) ot 
7 
ESE eh (——') | 
ir 
Easter Sunday = March (21 -+1-+ 28+4 =) 54 
= April (64 — 31 =) 23 
The Julian or Old Style Calendar was established by the Council 
of Nice A. D. 325; the first year of the Gregorian or reformed 
calendar was A. D. 1582, and the first year in which the reformed 
calendar was adopted in England was A. D. 1752. 
In Russia, and in other countries where the religion of the Greek 
Church now obtains, the New Style of reckoning has not been 
adopted, but the Old Style is still in force. 
In Alaska, Old Style was employed until after the cession of that 
country by Russia to the United States in the year 1869. 
EXAMPLE 5.—Find the date of Easter Sunday for the year 1582 
A. D., Old Style. 
15 |\ 682 
5 +15 | =75 
90—1) 157.° @ 
101 
“AT +7=24=19+45 
m= 5 
19n = (20—1)n=100—5 = 95 =3 %30 +5 
_ (19m4+15) (5415) _ - 
a= ( ee el 30), = 20 
p-(4e =) 
x 
(H=7=*) = = (77) =0 
