Turn1-8 AL: The Pern colonists arrive from Earth, Landing and the Southern stakeholds are established; native Dragonets are modified with mentasynth and become Fire Lizards.

Turn 8 AL/ 1 FP: First Threadfall over South, massive losses of life and property occur; resources become badly strained fighting Falls; Red Star orbit established and theoretical Pass pattern posed of 50 years of Thread followed by Intervals.

Turn 9-10AL/ 2-3 FP: The Dragon Project is begun to breed larger Fire Lizards to become renewable fighting force; First Dragons produced, Landing abandoned after volcanic eruption, along with most of the South for the North's stable mountain ranges. Many technological items destroyed in volcanic explosion near Landing, including AIVAS computer.

Turn 10AL/3 FP: The Second Crossing is made to the North; Fort Hold founded. Dragonriders begin to fight Fall, golds begin to Rise and clutch.

Turn 12AL/ 4 FP: Fort Weyr founded to house Dragonriders.

Turn 22-32 AL/ 14-24 FP: The first Weyr and Hold expansions begin, Telgar, Benden, and High Reaches Weyrs established along with associated Holds; Tithes begin to become primary support for Dragonriders; the last Southern colonists move North, completing Southern abandonment.

Turn 40-46AL/32-38 FP: Next wave of Weyr and Hold expansion takes place, Igen and Ista Weyrs founded along with associated Holds, Conclave system is finalized.

Turn 47-57AL/39-49 FP: Preperations for Interval are begun, plans are made for Interval expansions of Holds; Holds agree to a permanent tithe sytem for the Weyrs; the Crafts are beginning to be founded and apprenticeships introduced, Star Stones are erected at each Weyr to fortell next Pass as technology is lost; clutch sizes decrease, and fewer women stand as candidates, most choosing to claim stake acres or enter the fledgeling Crafts and look toward Interval.

Turn 58 AL/50 FP: LastFall is flown by elements of every Weyr, celebrations take place across Pern to welcome Interval.

Turn 59-65 AL/1-6 FI: Surveys are made of Northern Continent to plot out possible Holds as pressure increases to return to an idealized pre-Pass lifestyle.

Turn 65AL/6 FI: A small group of Miners and Smiths claim a rather harsh region with their stake acres, founding a small minehold over Weyr objections about the distant location. Iron Hills Hold Founded. Telgar and High Reaches share reponcibility for the new Hold and share it's Tithes.

Turn 66-76 AL/ 7-17 FI: Weyrs begin to fall out of favor as Pass fears ease and poor harvests occur at several Holds. Dragonriding becomes cargo runs and conveying passengers, fewer Holders are Searched and Weyr society slowly begins diverging more from that of Holders; a new generation of riders become Weyrleaders, replacing aging veteran bronzes. These riders begin to change the ways Weyrs are run in an effort to maintain disipline. Many veteran Riders from the Pass object, led primarily by female greenriders, who begin to see their roles reduced as politics begin to dictate ranks and Wing personel. In response, women begin to not Stand as candidates at some Weyrs unless a Queen egg is on the Sands, unneeded to reach candidate numbers for small Interval clutches, women riders are largely seen as liabilities by most Weyrleaders, many of whom were Weyrlings or not yet Impressed at the end of Pass. The numbers of female greenriders dwindle as few replace Pass veterans as a result, though the Crafts continueto welcome women.

Turn 125-130AL/67-72 FI: Iron Hills Hold is made a Hold Major by the Turns End Conclave, Pendril, grandson of the largest stakeholder, is named first Lord Holder. Telgar and High Reaches both begin agitating for becoming the sole Weyr the new Hold will look to; Weyr and Hold relations worsen as sides are taken in the dispute and Holder resentment increases as inter-Weyr politics begin to spill out into the public.

Turn 132/74 FI: Ista and Fort Weyrs advocate a solution hailed by the Holds, to simply create a new Weyr to cover the disputed territory; the Turn's End Conclave approves it with two abstentions, Telgar and High Reaches Weyrs; the other Weyrleaders begin to formalize plans to placate both Weyrs. Northern Barrier Weyr founded.

Turn 133-138 AL/75-80 FI: Northern Barrier Weyr is constructed; a Telgar rider, Hallisa, rider of gold Leldrath, becomes Weyrwoman, a High Reaches Bronze, G'sae with bronze Ormith, is Weyrleader. The move pleases both Weyrs, and matters begin to improve; the few women greenriders are removed from the fighting wings after an accident in the Spring Games, and are banished to the Queen's Wings.

Turn 143 AL/85 FI: Ingara of Iron Hills Impresses Nothern Barrier Weyr's first native bred gold, Vendreth. Tensions ease further between the new Weyr and her sisters of Telgar and High Reaches.

Turn 159 AL/101 FI: Hallisa dies, and Ingara becomes Weyrwoman. The Weyrs begin to become more indolent while they mark time until Pass.

Turn 160 AL/ 102 FI: Northern Barrier Weyr-bred Jalinis Impresses gold Kallinath.

Turn 183 AL/ 125 FI: Ingara dies, and Jalinis becomes Weyrwoman; the new Weyrwoman has a contempt for 'outsiders' and Hold-bred riders become less welcome additions to the Weyr, a feeling echoed by many.

Turn 190 AL/ 132 FI: Mining Camp bred Rellia Impresses gold Jarneth, and Ingara neglects the girl's training out of spite as her prospective replacement is 'unworthy'.

Turn 192 AL/134 FI: Jarneth's first flight is a disaster as Rellia panics and loses control, the gold is lost Between, taking her prospective brown mate with her; The ex-goldrider and the unfortunate brownrider later suicide. The shocking loss shakes the Weyrs and causes the beginning of a turn around in Weyr training and apathy; Northern Barrier suffers a tremendous loss of prestige; Jalinis' reputation never recovers and she enters a deep depression caused by guilt. For many Turns, no golds are clutched at Northern Barrier.

Turn 210 AL/ 152 FI: A new Queen is finally clutched by the aging Kallinath; another Hold-bred, Polnala, Impresses gold Gilmyth; Weyrwoman Jalinis, eager to make up for past actions, is almost obsessive in training the new rider.

Turn 212 AL/ 154 FI: To everyone's relief, Gilmyth's first flight is spectacularly sucessful, but senior Queen Kallinath is suspected to be too old to Rise again, and a change in leadership is eagerly awaited by most of the Weyr.

Turn 214 AL/155 FI: Kallinis fails to Rise, and Polnala becomes Weyrwoman; Jalinis retires but remains in the Weyr.

Turn 220 AL/162 FI: Jalinis dies; Polnala begins to make reforms and the Weyr enters a period of prosperity and their reputation begins to improve.

Turn 250 AL/192 FI: Ollianis of Fort Hold Impresses gold Paynrith.

Turn 255 AL/197 FI: After 41 quiet Turns of leading, Polnala dies; Ollianis becomes Weyrwoman.

Turn 265 AL/207 FI: Northern Barrier Weyr bred Belkora Impresses gold Finreth.

Turn 285 AL/217 FI: With Interval winding down, clutch sizes begin to increase; Weyrs begin to enlarge and Holders begin to prepare; Dragonrider prestige begins to rise to levels not seen since the First Pass.

Turn 293 AL/227 FI: Ollianis dies; Belkora becomes Weyrwoman; Pass preperation begins to speed-up as the new Weyrwoman revels in her increased influence and encourages a feeling of dependence on herself and Finreth.

Turn 294 AL/228 FI: Young Pernese, eager to serve, begin to swarm Searchdragons; many are turned away simply because of a lack of eggs; Weyrs are seen as a new opportunity, but women are now barred from the Sands unless a Gold is being clutched thanks to Turns of Weyr practices; very few women Impress greens and are viewed as oddities still being trained to fly as back-up to the Golds in the Queen's Wings.

Turn 302AL/237 FI: W'kel Impresses Bronze Jeklenth at Ista Weyr.

Turn 305 AL/240 FI: Finreth clutches a golden egg; Tillek Hold bred Malina Impresses gold Quilth at Northern Barrier Weyr.

Turn 308 AL/1 SP: FirstFall is flown by sections of all Weyrs, Interval ends, and Pern battens down for 50 Turns of Fall; the Weyrs suffer heavy losses in the first Turn as they attempt to put Threadfighting theory into practice; many who'd eagerly come to the Weyrs are lost, and Groundcrew horror stories sweep the Holds.

Turn 309 AL/2 SP: Jolane Impresses Gold Hielith at Igen Weyr; Malina's management skills become highly valued by Belkora, but the senior shows no signs of retirement or of considering Malina as a replacement in spite of her advancing age; Fall losses slowly begin to be stemmed as old skills are relearned and adapted.

Turn 311 AL/4 SP: The DragonHealerCraft, in responce to the loss of two masters and several journeymen riders to Fall, grounds the remaining Dragonhealers who are riders for the duration of Pass, not without outrage from several Craftsmen; many Holders begin withholding potential Candidates and fewer are eager to become riders, though enthusiasm for the Weyrs as institutions becomes high.

Turn 313 AL/5 T2P: Jolane and W'kel are transfered to Northern Barrier Weyr; the new Goldrider is suspected to be Belkora's choice to replace the competent but uninspiring Malina as future Weyrwoman by many, her dragon's age notwithstanding; Belkora, begins to conceal her failing health from the strain of leading, intending to remain as Weyrwoman until Finreth fails to rise.

Turn 314 AL/6 SP: Belkora, now 62 and growing ill, leads the Queen's Wing in Fall, and her luck catches up to her; she and Finreth jump Between to home, and never emerge. The shocked Weyr is left without it's longtime Weyrwoman and with the question of her successor, as Belkora never indicated who that should be and the Weyrs are eager to avoid any conflicts. In the interim, both Malina and Jolane share the duties and both are considered good candidates. A Weyr Conclave decides to use old traditions and the rider of the first of the two Queens to rise will become Weyrwoman with an open flight for Weyrleader; Several would-be Weyrleaders are sent to Northern Barrier, and the Weyrfolk soon are hoping for anyone but the visitors to catch thanks to arrogant behavior. Malina's Quilth rises first, and W'kel is made Weyrleader, the clutch holds a gold egg, Quilth's first, seen as a sign of luck.

Turn 315 AL/7 SP: Doranna of Iron Hills Impresses Gold Eanith; another female, Jessa, Impresses Green Bannuth, the first woman greenrider to Impress at Northern Barrier Weyr. Malina and W'kel become Weyrmates as well as Weyrleaders. Jolane serves as Weyrwoman Second.

Turn 321 AL/ 13 SP: Game Play Begins