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XV. The Application of Dr, Saunderfon’s 
Theorem for folving unlimited Equations , 
to a curious Queftion in Chronology: 
By Mr. James Horfefall, F, R. S. 
Read March Y old tables- it appears that Eafter 
fj day happened on the 2 2d of March 
(which is the Joojief it ever can happen), in the years 
of Chrift 165, 697, 1229, and laffly in 1761. 
Queft. 1. What is the next year of our Lord, 
when it will happen fo again before 1900? For, 
Note. From thence to 2199, the pafchal full 
moon, or the golden number 14, which 
diftinguifhed the years above, will be fixed 
on the 22d of March; confequently Easter 
day cannot happen before the 23^ of March in 
that period. 
Anfwer. In the a£t for altering the ftile, it ap- 
pears by the table for finding Eafter till 1899, that 
this can never happen in that period, but when the 
golden number , or lunar cycle, is 14, and the Sunday 
letter D. 
Alfo, by making a folar cycle for that century, the 
firft year of it will fall on 1812, the Sunday letters 
E D , wherefore all the years in that cycle, which 
have D for the Sunday letter, are 1, 7, 18, 24: 
and now the queftion is reduced to this. 
Queft. 
