...because there are lots of them.

Here's a rundown of my history.

1st Period: Creation to the Cleansing Fire.

During this time the Wushtat and mankind coexist. Men are constantly trying to overthrow the perfect dominion of the Wushtat, finally culminating with the destruction of Eden and the global fire.

A few remnants of each species (other than the Wushtat) are taken to an island where they are protected by the perfect influence of the last Wushtat. After the fire dies they leave the island and the Wushtat is murdered. At this point men break into the three kinds: men, elves, and dwarves, and the Covenant is established.

2nd Period: The Separation to the Union

The survivors of mankind split over religious differences. The smaller group treks across the Twlight and Ice to the other side of the world. The two groups become like separate worlds with their own histories.

In Soutwyth, the Huri are born of demon spawn.

Eventually, explorers from the other side meet, sparking a global conflict which ends with the Norwyth subduing Soutwyth.

3rd Period: The Union to the Incarnation

The Union quickly splits into multiple small countries. Journeys across the Twilight become more common, and countries also expand into the deserts.

The Demon-possessed Emperor Baan founds Tek-Baan, and dominates the Earth. His empire is overthrown but the Elvish age of wisdom also ends, plunging the world into a bronze age. Travel across the Twilight ceases.

The Savior is born to a human mother in the Soutwyth. The 2nd Covenant is adopted by the dwarves but rejected by all others except certain tribes of Huri. The believers become social outcasts.

4th Period: Reunion to Restoration

The Soutwyth and Norwyth meet again, and merge into a global empire during a time of sudden technological advance. Missions to colonize the three moons begin.

Expansion continues to foreign planets, and the Casimir tracts (I'll rename them later) are created.

A near-apocalyptic disaster wipes out all technology and every planet except Eartea. The Savior reappears to the Survivors and the restoration begins.

My primary gap is in the first period. How do a perfect race of Wushtat, residing in the "Garden of Eden" interact with fallen mankind and their dragon servants? How much time should I allow to pass? Are fallen men united or do they form separate countries?

Other questions prevail. Should the dragons, Huri, elves, and dwarves fade away as mankind grows?

I've decided that the music-cobha will exist only during the first period. The Music will die in the Great Fire, and the last Wushtat will prophetically impart the Order of the Mark to humanity as a replacement. (You may remember me referring to a ring-wearer concept. That has morphed into the Mark, a more original and more complicated concept.)

The Music and the Mark are distinctly different Cobhas. The Music fades as a punishment for the death of the Wushtat. The Order of the Mark is created to defend the Covenant. The Music is all about harmonizing things to obey our will, the Mark simply bends things to the will of the user. One is a subtle power while the other represents the brute force of control over nature.

Is having two cobhas confusing? Does it even make sense?

And I'm sure there are other questions.

Lot's of gaps. Say something that will jog my creativity.

First off... two cobhas is not confusing at all. I have three in the Red World. They are very distinct and clearly defined in your world, so it is all good.

For the first "Gap": You could go Tolkien and have thousands of years in gaps or you could have only a few centuries. I would say it would have to be a few hundred years at least.

I definitely like having space travel about to begin and then a reset. It is very cool.

"Should the dragons, Huri, elves, and dwarves fade away as mankind grows?"
I would like to see the Huri survive, because they are so cool. Elves would quickly become irrelevant in a world with men being so dominant, so I would say they could fade off the scene. The dragons would be rendered obsolete because as far as war and labor purposes are concerned they would have invented better stuff during the space age and thus have left all that behind. Dwarves I don't know about. It could be cool for them to come back when you least expect it.

I agree; the division between the cobhas makes sense and even has some positive allegorical implications.

I don't think the First Period would need to be incredibly long. I also think it's reasonable that mankind would all live together during that period.

I agree that elves and dwarves might gradually mix with humans and become irrelevant, but it would be nice if a few "pure" ones remained isolated somewhere.

Cobha is good. I have a couple questions on other things though. Why would the people murder the last Wushtat who saved them? Can the Huri be saved like anyone else even though they are demon spawn? The transfer from medieval to futuristic seemed sudden, but you might have a transition that you didn't comment on or I might have just had the wrong idea all along. You first say that only dwarves and some Huri accept the new covenant and then you say that the humans are dominant. How did no humans accept it as a tribe or something? About how long of a time so does the entire timeline span? And lastly, are the kingdoms all the races mixed or did they each have separate nations until the global nation?

Humanity (elves, dwarves, and men) has a old grudge against the Wuschtat. One of the elves who was saved is not exactly a savory character, and as soon as he knew that they were safe without the Wusch, they killed him.

I'll ask that you hold unto the Huri question until I've posted about them in the Eartea sub-forum. But if you track down some Archived topics about Huri, you can find the answer there. (In short: yes, they can be saved. In long: it's more complicated.)

The elvish and manish tribes (as a whole) do not accept the Second Covenant. Individuals, of course, sometimes go against this tendency. In fact, entire nations of elves and men adopt the covenant. But the whole do not.

Each race had a separate nation until the first empires began to form, before the first global union. After the global union, no race based nations were formed again.

It just seems strange to me that you would kill someone who had just saved your life only because of an old grudge.

Let's just say that one of the people who was saved is extremely evil.