Timeline (*Spoilers*)

I've been compiling dates mentioned in the game's tutorial, the Garden computer etc....

Years ago = y.a.
Deep Sea Research Center = DSRC
(Month/Day)

? y.a. Great Hyne creates life
4000 y.a. Centra civilization founded
? y.a. Esthar founded
? y.a. Dollet Empire founded
80 y.a. Centra cities destroyed by Lunar Cry
44 y.a. (1/3) Laguna Loire born
42 y.a. (2/25) Ward Zabac born
40 y.a. (7/6) Kiros Seagill born
18 (?) y.a. Horizon Bridge finished
18 y.a. Julia Heartilly marries General Caraway
18 y.a. Galbadia invades Timber
18 y.a. (10/4) Quistis Trepe born
18 y.a. (12/22) Seifer Almasy born
17 y.a. Sorceress Wars ends
17 y.a. Esthar closed
17 y.a. Radio interference due to sealing Adel
17 y.a. (3/3) Rinoa Heartilly born
17 y.a. (3/17) Zell Dincht born
17 y.a. (7/16) Selphie Tilmit born
17 y.a. (8/23) Squall Leonhart born
17 y.a. (11/24) Irvine Kinneas born
12 y.a. Julia Heartilly dies
12 y.a. Balamb Garden (a Centra shelter) founded
12 y.a. Galbadia Garden founded
12 y.a. Trabia Garden founded
Present Events of FFVIII

3015 DSRC found a strong energy field
4127 Travel possible by underwater tower
4141 DSRC named Deep Sea Deposit
4242 DSRC sealed off Deep Sea Deposit

I did this because I'm interested in writing a fanfic that involves the DSRC. The problem is there are no clues as to when the events in the DSRC occured within the timeline. Any ideas when the Deep Sea Deposit would have been discovered? (I'd like to involve Laguna in the plot if possible)

Did I miss any dates? I know I haven't included the events in FFVIII proper.

you could of included the fact that Norg funded the garden? maybe

Yeah, Cid spent some time running around trying to fundraise in order to open Garden, then later he met NORG whose business acumen helped to get things going.

Edit: When Edea was five years old, she became a Sorceress for the first time. An important event, but hard to put into a timeline since we don't know her exact age.

Hadn't thought of this earlier, but...

Centra -> Cetra
Lunar Cry -> Calamity from the skies

A common theme?