Some comments:

> 2.8 - 2.2 BYA: Progenitors rule the galaxies in what is
> traditionally thought to be a Golden Age.  Mention of 13 Galaxies.
> Records extremely sketchy. 
>
It seems that what is implied by the text of Contact Aliens is that
_early_ in this period Galaxy 1 and Galaxy 2 became linked, and
then a horrible War began, with total annihilation of O-2 civ, except
for the Progenitors. This led them to Uplift.

>
> 2.3 BYA: Progenitors separate themselves from affairs of lesser
> races, passing on laws and edicts.
>
> 2.305 BYA: First Wars with Hydrogen-Breathers begin. 
>
Of course this is a typo: 2.305 happens _before_ 2.3 :-)

> 2.24 BYA: Zang establish separate peace with O/2 Civilization paving
> the way for a general peace.
>
Contacting Aliens gives this date as 2.25 [ok, we can accept that
2.25 is an approximation - the entry in CA is quite long]

Why not add the following:

545 MYA: Diversity is artificially induced in many worlds, including Earth
[causing the Cambrian explosion]. This is the last reference to Earth in
the Galactic Library.

> 0xY /2211 CE: First Galactic Contact.  Human explorers contact
> Tymbrimi colonists.  This was 87 paktaars ago by Galactic measure. 

Nope.

BTW, why the dates are usually referred as "after/before Contact"
or as "years ago"? This makes conversion to AD and BC a useless
task, and we have had several different, mutually contradictory,
dates for Contact. Based on the data of Sundiver, I could compute
the Year of Contact with reasonable precision, and it was fixed in
2212 AD. 

> 31 AxY: A small branch Library is installed at La Paz, Earth. 
> The Human starship Tabernacle disappears.
>
The flight of Tabernacle should happen _after_ Sundiver, because
they carried a book written by Jacob Demwa in year 42 after Contact.

> 40 AxY /2290 CE: Sundiver incident. Library at La Paz is upgraded
> through a GLI grant.
>
Sundiver gives the explicit date of 2246 AD [which corresponds to
34 AxY]

I would like to present the "recent" dates in terms that are
human-understandable. For example, it doesn't make sense to
write "277.25 AxY: Garth invaded by Gubru". Why not _explicitly_
give some date? But this is something that is still beyond my
computing powers: right now I am busy trying to spot some
inconsistencies in the movements of Jijo's Moons.

Alberto Monteiro

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