If this timeline contradicts itself, it's because it contains material from Earth-2, Earth-S, Earth-4, and a couple others.
c. 7,000 BC?
In Canaan, a young boy named Jebediah is given a magic word, VLAREM, by the gods to become the hero named the Champion, possessing the strength of Voldar, the wisdom of Lumiun, the speed of Arel, the power of Ribalvei, the courage of Elbiam, and the stamina of Marzoah.
When Evil, the most dread of gods, appears, able to split into three forms (Terror, Sin, and Wickedness),the gods send Champion to the far future to seek the aid of his successor, Captain Marvel. Together, they defeat Evil and his servants, the Seven Sins. The Champion and Captain Marvel imprison Evil and, in the process, create the Rock of Eternity.
For 3,000 years as Jebediah grows older, until the gods he knew were forgotten by all save himself, he becomes a great wizard, taking the name Shazam.
c. 7000 B.C.
A pair of space travelers, Osira and Hefnakhti, are stranded in prehistoric times. They contribute to the rise of culture in Egypt until a rebellion fomented by a priest named Anankh results in their being captured and mummified alive. In May 1942 Osira is awakened, and bedevils Wonder Woman and the Justice Society before being defeated. [Wonder Woman #231]
circa 4,036 B.C.
The evil pharoah Kha-ef-re rules in ancient Egypt. He creates a mystical scarab which is lost for 4,500 years before being rediscovered in the 20th century by archaeologist Dan Garrett.
c. 3,500 BC
Captain Marvel visits 1st Dynasty Egypt from 1947 to reveal a thief who robs the pharaoh by impersonating the wizard Shazam.
The Lord of Order known as Nabu the Wise descends to Earth from the planet Cilia, landing in the region called Mesopotamia.
c. 3,100 B.C.
[speculation] Heru, avatar of the hawk-headed god Horus, uses Horus' gift of speed and becomes the first emperor of Egypt. A scroll containing the formula he uttered to obtain this speed was found in the tomb of a king named Amen [Aha Menes], and deciphered in 1941 by Professor Gill, who gifted the secret to Johnny Chambers (who, unknowingly, was influenced to adopt a hawk emblem on his uniform as Johnny Quick).
c. 3,000 B.C.
A race of bird-people inspire the Egyptians to create their mythology. Thoth, their leader, "warned the Egyptians of the world-curse of his eternal enemy, Setekh ... but they heeded him not. So, he left the 'Black Land' forever, leading his great flock to what is now called Greenland. There, they founded Feithera. Then he left this planet altogether, and has since been seen by none. [Infinity, Inc. # 43]
26th century B.C.?
In Egypt, the time-lost 20th century hero named Stripesy is forced into slavery for a few weeks before he is rescued by Hourman, Starman, and Batman.
c. 2580 B.C.
Vandal Savage and Kulak both pose as Cheops (Khufu), ruler of Egypt. Defeated by Savage, Kulak is placed in a tomb-like time capsule in the Egyptian desert. [JSA V2#10]
Vandal Savage purportedly rules Egypt from 2590 to 2567 B.C., ordering the construction of the Great Pyramid at Giza. He apparently continues his rule by masquerading as his own son, Khafre. [Flash #137]
Superman assists Cheops by completing construction of the Great Pyramid (which provides evidence that there was a real Cheops, as the Superman would probably recognise Vandal Savage). [World's Finest #32]
2030 B.C.
In the Egyptian city of Bubastis, the mad priest Khalis slays his followers in the name of the god Anubis, who grants Khalis the Amulet of Anubis as a reward for his service. Nabu the Wise overcomes Khalis, strips him of the Amulet, and orders Khalis mummified alive. [First Issue Special #9]
c. 2,000 BC
During the 12th dynasty, an evil Pharoah, misled by the false priest Mesu, abandons the worship of Osiris and the benevolent gods and makes league with Set. When Prince Amentep speaks out, he is thrown in jail, there receiving from his uncle the Ibistick and becoming Ibis the Invincible. In rebellion against the tyrannical Mesu (now known as the Black Pharoah), Taia is struck by an arrow. Ibis places her and himself into suspended animation.
A generation later, an evil magician named Serpenotep conquers the Land of the Nile by imprisoning the benevolent wizard that had protected the people. Serpenotep rules tyrannically until the original Isis, posing as a servant, sneaks past the guards and into the wizard's prison. The wizard explains that she would be unable to free him until Serpenotep was defeated, but that he is able to transfer some of his power into those who are worthy. Using his magic, he causes an amulet necklace to appear around her neck, and an amulet tiara on her head. He tells her that she now possesses the powers of the pyramid - she can soar as the falcon soars, run with the speed of gazelles, and command the elements of earth and sky. The new heroine then confronts the wicked tyrant. Serpenotep commands his snakes to entwine the young goddess, but she recites an incantation which frees both her and the old wizard. Isis and the wizard combine their power and encase Serpenotep in stone. For years afterwards, Isis guards those in need, until the day finally came that she passes on. She predicts that she would come again, in another form, to battle evil. [Isis #7]
c. 16th Century BC
The aged wizard Shazam aligns himself with the Pharaohs of Egypt (or returns to align himself, if the wizard who granted powers to Isis is in fact Shazam).
c. 15th Century BC
Queen Hapshuset (Hatshepsut) rules as Egypt's first and only female pharaoh. Thanks to his powerful magic, the old wizard still lives, and serves as her royal sorcerer. Sensing greatness in her, the wizard presents the Queen with the mystical amulet. He tells Hapshuset that she and her descendants would be endowed by the goddess Isis with great powers. Upon donning the amulet and invoking the name of the goddess, Hapshuset is transformed into an avatar of Isis. After her death, the wizard takes the amulet and hides it, along with a scroll which explains the secrets of Isis. He casts a spell, designed to lure one of the Queen's worthy descendants to the site, so that the power of Isis could be rediscovered in some future era. [Isis #7]
1567 B.C.
In Egypt, Prince Khufu-Maat-Kha-Tar and his beloved Chay-Ara are assassinated by Hath-Set, an evil priest of Anubis who truly serves Setekh. 3,500 years later, they will be reincarnated as Carter Hall and Shiera Sanders. [Flash #1]
circa 1450 B.C.
The Egyptian sorceress Evila (alias Hatshephut II?) is active. Her mummy is revived in April 1966 by The Hooded One, though she is eventually defeated by Thunderbolt and Blue Beetle II. - Thunderbolt #51
circa 1350 B.C.
Chufru, the Sun King, reigns in Egypt. In A.D. 1968 his apparent reincarnation, an Egyptian metallurgist, physicist and chemist of note, attempts to steal the world's gold and use it to coat the building blocks of a new pyramid he is building in the Egyptian desert, as a step towards re-establishing the culture of the Old Kingdom across the world. He is eventually stopped by the Peacemaker. - Peacemaker #6, unpublished [Joe Gill & Pat Boyette]
1290 BC
Rameses II assumes the throne of Egypt. Shazam, attempted to find a deputy to take his place, chooses Teth-Adam whom he grants the powers of six Egyptian gods, turning him into Mighty Adam. He gifts him with the stamina of Shu, the strength of Hershef (or Harsaphes), the power of Amon, the wisdom of Zehuti (or Thoth), the speed of Anpu (or Anubis), and the courage of Menthu (or Mont). [note: post-Crisis the arrangement is slightly different: the stamina of Shu, the swiftness of Heru, the strength of Amon, the wisdom of Zehuti, the power of Aton, and the courage of Mehen.]
c. 1290 B.C.
Nabu becomes adviser and court magician to the pharaoh Ramses. He is humbled in battle with the Spectre, who kills Ramses for his crimes against the Hebrews. Despite Nabu's warnings, the pharaoh's son, Ramses II, continues the persecution of the Hebrews. In retaliation, the Spectre slays the first-born sons of Egypt and then protects the Hebrews by parting the Red Sea as they flee the pharaoh's troops. Some time after these events, Nabu the Wise, realizing that his mortal form is weakening, places himself in suspended animation in a tomb in the land of Sumer, in the Valley of Ur, to await a new mortal host. [Spectre #14, Exodus 12:29-14:21-31]
1260 BC
Mighty Adam arranges major peace treaty with Hittites.
1225 BC
When Rameses II dies, Shazam leaves Egypt; Mighty Adam carries on. Teth Adam is corrupted by his power, and is renamed Black Adam by Shazam, who exiles him to the farthest reaches of the universe. The wizard resolves to do as the old gods had done, and choose a boy, not a man. Merenptah is made Pharaoh.
Shazam journeys to Greece and Rome during their heroic ages, becoming friends with the gods Aurora, Mercury, Minerva, Oggar, Selena, Zephyrus (according to the Akkadian culture of Iraq, thought to be the world's first empire, the wind-gods were androgynes, bearing both male and female aspects) and Zeus; the Titan Atlas; and the heroes Achilles, Ariadne, Hercules, and Hippolyta.
mid 14th century BC
Under the reign of Amenhotep IV, the worship of the gods of Egypt wanes. This leads the gods to turn their attentions elsewhere, leaving the people to follow their own paths. It is at this time that the spacecraft of an alien named Aten is damaged and forced to land on Egypt's sands. All fear him save for the brave king. Amenhotep shows Aten his civilization and evidence of his gods. But Aten sees no sign of the gods themselves. He observes that they had been there, then left, leaving the people to dry up and die. Aten believes he was their salvation. Amenhotep changed his name to Akhenaten in the alien's honor. He and his wife, Queen Nofretete, proclaim Aten their new god - and his fiery ship the Chariot of the Sun. The people still believe in the old gods, but Akhenaten, Nofretete, and Aten maintain the new way. The alien tecahes them much, and they teach him about the power of the ancient gods and their pyramids.
Aten remains in Egypt for nearly two decades, until Akhenaten dies. The alien believes that the people will soon revolt in favor of the old gods. Aten knows it is time to leave, but before he does, he plants a signal device to warn him if the gods ever did return. He returns to his home planet, but is surprised when the High Council banishes him for interfering with the development of a primitive world. Remembering the pyramids, from which the Egyptian gods had derived their power, Aten crosses the void back to Earth to seek revenge on those in the Council. He remains in orbit around the planet, until such a time as one of the gods again accesses the power of the pyramids. [Isis #5]
c. 10th Century BC
Shazam meets with King Solomon of Israel. He has by now taken the name Shazamo.
An evil magician named Scarab terrorizes Egypt until he is captured and imprisoned in a pyramid, where it was believed he would remain forever. In October 1976 AD, archeologists move the pyramid, enabling the magician to escape. The heroine known as Isis is able to trick Scarab in becoming trapped in the pyramid once again. This time his imprisonment would be permanent. [Isis #1]
1059 BC
Kalkor, a priest of Isis, perishes battling the 'Queen of Evil' Nagana, who is transformed into a statue. [Fantastic Comics #22]
1st century BC
When Achilles and Solomon are long dead, Shazamo summons their spirits to join Zeus, Mercury, Atlas, Hercules and Oggar to do good in the world. Oggar, the god of magic, rebels and turns evil. Shazamo drives all the bad gods from earth, including Oggar and Satyr. Shazamo defeats Oggar with the help of the gods, banishing him and with one blow striking the "O" from the name on his marble throne, from that moment on referring to himself again as Shazam. As Oggar melts away to nothingness, in his parting words before vanishing completely, he angrily swears that he will return one day to seek revenge against the wizard and the gods. Shazam realises that Oggar was immortal whose strength would eventually renew itself and that one day he would break out of his temporary state of nonexistence. During council with the gods, Shazam sets up an elaborate plan, under which it is decided that each of the gods and heroes would pass their individual powers into one mortal of a distant era, a champion capable of opposing the evil god of magic. [Captain Marvel Adventures #61-66]
c. 30 B.C.
Prince Algon of the city of Ma-Phoor (somewhere south of Ethiopia) becomes the first Metamorph. He is the betrothed of Queen Jezeba (a dead ringer for Sapphire Stagg). [Metamorpho #16-17]
