Donna: Great post.  You are a prophetess.

Wes K: Great Post; however, you may want to consider the great tribulation is actually 1,290 days, not 1,260 days.  This places the abomination 30 days before the middle of the 70th week.  That is why Daniel states the abomination occurs in the "midst" of the week and not the "middle".  That is why Daniel 12:7 states "From the time that the regular sacrifice is abolished and the abomination of desolation is set up, there will be 1,290 days.  There are many, many things from scripture that occur in this first 30 days of the great tribulation.  Here are just a few of the highlights of what happens:

The antichrist declares himself to be God in the temple 30 days prior to the midpoint of the 70th week.

Those in Judea who see this are to heed Jesus' warning in Matthew 24:16 to flee to the mountains.  Some theologians call this the "flight phase" of the great tribulation because it is during this 30 days that the Jews are fleeing from the antichrist. 

During the later part of this 30 days the antichrist is assassinated by the two witnesses.  We know this from Revelation because he is resurrected from the abyss at the midpoint of the 70th week to reign in terror for 42 months (3 1/2 years).  The whole world mourns his death and is gathered in mourning to look down at him as he lies in state.  That is why Jesus said in Matthew 24: 28 "Wherever the corpse is, there the vultures will gather."  

While the workd is looking down, believers are to look up because as it is written in Luke 21: But when these things begin to take place, straighten up and lift up your heads, because your redemption is drawing near."   

Incidently, it is the assassination of the antichrist that temporarily cuts short the great tribulation.  With the antichrist dead, the slaughter of the jews is temporarily abated in the ensuing world confusion over the death of its savior. 

 
Rico.