Argus was once ruled by the Second Duumvirate, consisting of Velen and Kil'jaeden. During this time, the sorcerer Thal'kiel and his order of eredar mages, the Wakeners, began using summoning magics to conjure demons from the Twisting Nether. Velen condemned Thal'kiel's new summonings and ordered him never to conjure them again. However, with the support of these entities, Thal'kiel hoped to become the sole ruler of Argus. His trusted apprentice, Archimonde, informed Velen and Kil'jaeden of the planned coup. Archimonde was placed in charge of the attack on the Wakeners' hidden stronghold and decapitated his former master himself. Archimonde would later rise to rule Argus alongside Velen and Kil'jaeden, and the three eredar wisely ruled the planet for many years. Mac'Aree was the most sacred of the cities on Argus.

Eventually, Argus attracted the attention of Sargeras. He offered the eredar a deal: in exchange for their loyalty, he would give them power undreamed of by all races. Kil'jaeden and Archimonde were quick to accept the offer, but Velen had a vision of the future: the eredar would be transformed into demons under the rule of Sargeras. His advice to Kil'jaeden and Archimonde went unheeded, and he desperately sought a solution to this dilemma.

Eventually, Velen was contacted by a race of divine energy beings called the naaru, and he fled with his followers, renaming his people the draenei, or "exiled ones", while Kil'jaeden, Archimonde and the rest of the eredar became the feared, insidious sorcerers and tacticians of the Burning Legion. As the draenei fled, the world was devoured by the Legion. After Argus fell, Sargeras ordered a temple of darkness to be built deep within the planet's core. Little is known of it, for only the titan's most devoted acolytes are given sigils that permit entrance.

Text above is taken from the Argus Wowpedia page:
https://wow.gamepedia.com/Argus


0:00 Argus 11H
1:47 Ancient Eredar H
4:03 Vindicaar Over Krokuun 6
5:36 Argus 21H
6:50 Argus 22A

8:55 Mac’Aree Kil’jaeden 4
10:16 Argus 12A
11:45 Ancient Eredar B
13:13 Baleful Night H
14:45 Xe’ra H

16:36 Argus 11C
18:23 Mac’Aree Void Full 1
19:51 Mac’Aree Void Medium 3
21:16 Argus 21A
22:29 Ancient Eredar F

24:36 Krokuun Xenedar Landing 3
27:00 Argus 22D
29:56 Argus 12H
31:26 Vindicaar Over Mac’Aree 2
32:59 Argus 11B

34:46 Ancient Eredar D
36:21 Argus 21C
37:35 Mac’Aree Kil’jaeden 5
39:26 Mac’Aree Void Medium 4
42:18 Mac’Aree Void Full 2

43:45 Ancient Eredar A
45:52 Argus 12C
47:21 Baleful Night A
48:50 Xe’ra A
50:42 Argus 11A

52:29 Ancient Eredar C
54:03 Argus 21B
55:17 Argus 22H
57:23 Argus 12B
58:52 Ancient Eredar E


Xe’ra, Xenedar Landing and Baleful Night composed by Russell Brower

Ancient Eredar and Vindicaar composed by Neal Acree

Mac’Aree tracks composed by Clint Bajakian

Argus composed by Glenn Stafford