Whats With Muslims And The Beheadings?

Jews celebrate Hanukkah:

Christians celebrate Christmas:

and Muslims celebrate Eid al-Adha:

One of the main trials of Abraham's life was to face the command of God to sacrifice his dearest possession, his son. The son is not named in the Quran, but Muslims believe it to be Ishmael, though it is mentioned as Isaac in the Bible. Upon hearing this command, Abraham prepared to submit to will of God. When Abraham attempted to cut his throat, he was astonished to see that his son was unharmed and instead, he found a ram which was slaughtered. Abraham had passed the test by his willingness to carry out God's command.

This story is known as the Akedah in Judaism (Binding of Isaac) and originates in the Tora, the first book of Moses (Genesis, Ch. 22). The Quran refers to the Akedah as follows:

100 "O my Lord! Grant me a righteous (son)!"
101 So We gave him the good news of a boy ready to suffer and forbear.
102 Then, when (the son) reached (the age of) (serious) work with him, he said: "O my son! I see in vision that I offer thee in sacrifice: Now see what is thy view!" (The son) said: "O my father! Do as thou art commanded: thou will find me, if Allah so wills one practising Patience and Constancy!"
103 So when they had both submitted their wills (to Allah), and he had laid him prostrate on his forehead (for sacrifice),
104 We called out to him "O Abraham!
105 "Thou hast already fulfilled the vision!" – thus indeed do We reward those who do right.
106 For this was obviously a trial–
107 And We ransomed him with a momentous sacrifice:
108 And We left (this blessing) for him among generations (to come) in later times:
109 "Peace and salutation to Abraham!"
110 Thus indeed do We reward those who do right.
111 For he was one of our believing Servants.
112 And We gave him the good news of Isaac – a prophet – one of the Righteous.

— Quran, sura 37 (As-Saaffat), ayat 100–112^[18]

Abraham had shown that his love for God superseded all others: that he would lay down his own life or the lives of those dearest to him in submission to God's command. Muslims commemorate this ultimate act of sacrifice every year during Eid al-Adha.