The Pernese dates are listed first, in the standard Pernese format of Year.Month.Day. In parentheses below are the Terran dates, put into the same format for easier comprehension.
General Timeline:
Int.01.02.xx- Sixth Interval begins
Int.20.11.15- Fish plague decimates Izar Weyr
I 191.12.21- Weyrleader Conclave first proposes new weyr, Siran
I 193.13.24- Construction of Siran Weyr begins
I 199.13.20- Orrendath flown by Wakanth at High Reaches Weyr
(1996/12/22) This flight determined the Weyrleaders of the new weyr
P 01.02.10- Siran Weyr is occupied, although not completed
(1997/02/07) WW Arienh and WL E'van in residence
P 01.03.03- Orrendath (Senior Queen) clutches 21 eggs
(1997/02/28)
P 01.03.15- Threadfall actually begins
(1997/03/12)
P 01.04.10- Orrendath Hatches:1-gold 4-bronzes 4-browns 5-blues 7-greens
(1997/04/04) Weyrling Group 1
P 01.06.17- Jalith flown by Nariohath; J'then becomes WL2nd
(1997/06/06)
P 01.xx.xx- Aliana confirmed as Lady Holder of Siran Hold
(1997/xx/xx)
P 01.08.19- Jalith clutches 15 eggs
(1997/08/03)
P 01.xx.xx- Orrendath flown by Wakanth
(1997/xx/xx)
P 01.09.11- WLM2nd Bezra arrives from Igen Weyr
(1997/08/23)
P 01.10.03- Orrendath clutches 18 eggs
(1997/09/12)
P 01.10.10- Jalith Hatches:0-gold 2-bronzes 2-browns 5-blues 6-greens
(1997/09/19) Group 2
P 01.11.17- Orrendath Hatches:2-golds 2-bronzes 2-browns 4-blues 8-greens
(1997/10/24) Group 3
P 02.02.15- Jalith Hatches:0-gold 1-bronze 2-browns 3-blues 5-greens
(1998/02/12) Group 4
P 02.04.01- Orrendath Hatches:0-gold 1-bronze 2-browns 2-blues 4-greens
(1998/03/26) Group 5
P 02.08.01- Jalith Hatches:0-gold 1-bronze 2-browns 2-blues 5-greens
(1998/07.16) Group 6
P 02.09.08- Weyrling Group 1 graduates to Queen's Wing
(1998/08/20)
P 02.10.15- Orrendath Hatches:0-gold 1-bronze 3-browns 3-blues 6-greens
(1998/09.24) Group 7
P 03.01.15- Jalith Hatches:0-gold 1-bronze 2-browns 3-blues 6-greens
(1999/01/15) Group 8
P 03.02.07- Weyrling group 2 graduates to Queen's Wing
(1999/02.04)
P 03.03.10- Weyrling Group 3 graduates to Queen's Wing
(1999/03/07)
P 03.04.11- Orrendath Hatches:0-gold 1-bronze 2-browns 3-blues 5-greens
(1999/04/05) Group 9
P 03.06.01- Jalith Hatches:0-gold 1-bronze 3-browns 3-blues 6-greens
(1999/05/21) Group 10
P 03.10.15- Orrendath Hatches:0-gold 1-bronze 2-browns 2-blues 5-greens
(1999/09/24) Group 11