请英语水平高的人士帮忙语法修改EasterEaster,anniversary of the Resurrection

【The】 Easter anniversary of the Resurrection of Christ 【is】 observed on the first Sunday after a full moon on or after 21 March.
The white Easter lily has come to capture the glory
of the holiday.The word "Easter" is named after Eastre,the
Anglo-Saxon goddess of spring.A【把A还成The】 festival was held in her honor every year at the vernal equinox （春分）.
Halloween
Halloween was called Samhain by the Irish.Time:【from 】October 31 to November 1.
During this period,to celebrate the festival,
the Irish would dress up in bizarre costumes and parade through their villages,causing 【some】 destructions and saying “Trick-or-Treat” in-groups 【to】 scare off any recently departed souls who might be prowling for bodies to inhabit .Irish immigrants brought several
customs with them,including one of the symbols most commonly associated
with Halloween -- the "Jack Lantern".
Christmas
Christmas is a religious festival.It is the day we
celebrate as the birthday of Jesus.The name christmas is short for christ's
mass,【which】 is a kind of church service.
There are special christmas services in christian
churches all over the world,but many festivities of christmas do not
have anything to do with religion.【 Exchanging gifts and sending christmas cards are the modern ways of celebrating the christmas in the world.