Update 5: 200 000 Years
With their population steadily building, the Wabaho and Wabaha cultures grow increasingly mobile, spreading further and further across the world's coasts. The Wabahas, in specific, spread across the entirety of the continent's eastern coast. Long-distance indirect trade grows steadily, accelerating the exchange of ideas, technologies, and genetics between the north and south. People with close relations to the gregarious 'raft people' are found from the southern slopes of the Akgan Range, to the tip of the continent, to the boreal forests of the far southwest.
The Wabahos, in addition to expanding widely down the eastern coastline of the continent (influencing the development of the Makapos, coastal Myakaps who have adopted many Wabaho practices and tools for their own), also established a farflung population on a the coast of a new land. These people find themselves isolated from the technological exchange on the old continent, but manage to use their pre-existing cultural toolkit to expand broadly. The people living in the arid and temperate zones come to know themselves as the Wabao, while the southerners, who have come to reside in a coastal rainforst, call themselves the Wabahn.
The Oebhwaho and Webwayo, by comparison, are relatively more reserved and less mobile, simply growing more densely populated within their own regions. The Webwayos, in specific, are particularly bold in their ventures out to sea, especially as their population begins to deplete the fisheries of their native bay.
The Gero Valley remains a dense centre of human population. Heavy interbreeding and influence from and to the Wabaha leads to the development of the Querhua, who have come to dominate the lower valley, while more rustic Geros gradually withdraw further inland. A diverse array of stone tools are now used by the peoples of the valley. Cooking is widespread, and social organization helps to sustain the dense populations. Partially due to the influence of the gracile Wabaha, and partly due to the different requirements of living in the region than were found in other parts of the world, Querhua have smaller teeth, less robust skeletons, and less prominently projected jaws than many of their contemporaries.
The Ampatas come to be very heavily influenced by the Geros, ultimately leading to the formation of the Ambaro culture. The Ambaros facilitate a great deal of technological exchange between the Gero Valley and the southeast, across the northern plains of Kicca.
To their north, the Apa'al are generally less influenced, having a generally more hostile relationship with the Geros. The bulk of their population comes to be concentrated around the Akger river, where the people increasingly refer to themselves as Aka'al: the Akger Apa'al.
The Kikpals of the Kogan range begin to produce simple art around this time, and with the gradual diffusion of new technologies into their land, their population expands as well. Meanwhile, the Agpals continue the same herd-pursuing ways that they have lived by for hundreds of thousands of years. The arrival of Wabahas on their coastlines leads to the development of a simple trade, slightly enriching what are otherwise a rather poor and backwards people.
In the Yakgu Rifts, the reclusive Mnayakgu live as they always have, crawling up and down the deadly cliffs that no other humans dare scale, living in great isolation from the rest of the world.
The Mnalyaba are steadily overwhelmed by the successive waves of Tharyavs. The Daryava, as this new, mixed-heritage wave call themselves, establish themselves as the dominant people of the southern coast of the rifts, pushing the remaining Mnalyaba inland. The more isolated Nyamaba remain at the edge of Daryava and Tharyav reach.
In the far south of the world, the Amalyafvs fight an unending struggle against the various Tiryaps that surround them. The Tharyavs are steadily pushed north (ironically into the distant relatives of the Amlyafvs, the Mnalyaba), while the last remnants of the Taryabs withdraw into the eastern Ypta Mountains. In the south, the cultural fronts fall into a stalemate, as the Great River of the Tiryats remains outside of Amalyafv reach.
The Tiryats grow steadily more proficient at hunting large mammals, particularly moose, which are moderately less likely to kill them than woolly mammoths and rhinos.
North of the Tiryats live the Nekra and Temekyap, the former generally growing at the expense of the latter. If we follow the populations westward, we come to a land where Timika culture dominates. With simple rafts, Timika can traverse much of their shallow, inland sea and the gentle rivers which flow into it. Further into the desert live the Ikyp. Adapting more and more for life in the harsh dunes, they have penetrated as far into these unforgiving lands as they can, with a few isolated groups living around life-giving oases.
The Hemicep, Mkyaph and Makyerf live in the colder lands to the south, with only the Mkyaph having a significant presence on the southernmost tributary to the Timika Sea. Broadly speaking, the Hemicep are the people of the eastern mountains, the Mkyaph the lowlands and river vale, while the Makyerf make their homes among the southern forests. The Makyerf have grown the most of all three, expanding far to the south and west, even coming into contact with some of the furthest Tiryats.
In the far southwest, the Myakaps have moved steadily towards the milder, more temperate zones. Some of the coastal Myakaps, particularly influenced by the presence of the Wabaho, have even come to adopt the ways of the rafting-men. Thus does their technology begin to slowly percolate back into the interior from the west.
At the continent's heart, the Itar Sea remains as it has been for longer than the spoken record can recall: violent. The Diryaj have developed a practice of burning away brush, to aid in foraging and hunting, often terrifying their neighbours in the process. Flames often precede these lowland Tiryaps, who have expanded broadly across the southern Itar Sea, ultimately exterminating the southern Cao, though the swimmers are succeeded by their northern relatives. The Diryaj eastward migration proceeded to overflow into the lands of the Myukyap, who were overwhelmed and driven to extinction. However, the Diryaj at last ran into solid resistance upon entering the Gero Basin. Here, they found people far more numerous and well-armed (if somewhat less masterfully-versed in the arts of violence) than themselves. While they were able to disperse and drive off some Apalo tribes, the settled Amalyos resisted strongly against the intruders.
Back in the Itar Sea, a secondary conflict raged at the western end of the sea, as Tyumrus, Ziag (western Diryaj) and Ikzils vied for dominance over the rich area. Ultimately, unending generations of warfare failed to generate a lasting winner. Ikzils resisted the intrusions of the Diryaj into their highland homes, Ziag and Diryaj fought each other just as fiercely as they fought the others, and the Tyumru... simply were, keeping their feet firmly planted in the heart of the rich, blood-spattered region.
Further west, the Muktas largely avoided the conflict, though they continued to enjoy a relatively cordial relationship with the Ikzil.
North of the desert, the Vommas, moving further away from their sedentary heritage, become more mobile across the arid belt between the northern jungles and the southern desert. Unique vocal adaptations to the Vommas allow them to produce a wider variety of vocalizations. The Apfals remain relatively more static.
Certain southern Apa'nuks, interbreeding with northern Vommas, acquire the same new vocal capabilities. These Avenecs, partially in response to the expansion of Abhwals and Wabahas into their territories, generally opt to retreat and hide, rather than confronting the more advanced invaders. Their tribes live in hidden villages in the trees, free from the depredations of the river-men.
Biologically, several important things have happened during this period. The Mnayakgu people have diverged as a functionally different species from the rest of humanity,
Homo reptatus. Short and hairy, with abnormally long arms and gripping hands and feet, the Mnayakgu are native to the rifts, great tectonic valleys, caves and chasms separating the long sea from the great outer ocean. They live in areas too treacherous for any other humans to safely follow, where they hunt and gather with little need for technology, safe and isolated from the depredations of other humans.
At the same time, the Gero valley has given rise to humans with signs of self-domestication, including smaller, receded dentition and a lighter, less robust skeleton. Elsewhere, humans continue to diversify, from the Wabahas of the north, whose posture, musculature and fat retention make them excellent and hardy travelers, to the Amalyafvs, whose dense, stocky build and lighter skin adapts them well to the necessities of life on the cold southern shores of the continent.
Across the world, the rate of accumulation of technology is accelerating. Nowhere is this more apparent than on the eastern coast, particularly the densely-populated lands between the Gero Valley and the great delta of the Wabaha. The high mobility of the Wabahas and Wabahos has helped to spread technologies across all coasts, but these pathways do not extend into the continent's inland basins. As a result, these regions are beginning to lag behind.
Cutting edge technologies at this time include hafted weapons and tools, and prepared-core stoneworking. Major strides are also being made culturally and socially. Music has appeared in several regions, and religious beliefs are growing steadily more complex over time. Social organization, partularly in the eastern river basins, is growing increasingly elabourate, as large groups cooperate to ensure greater chances of group survival. The most advanced parts of humanity are currently in the middle paleolithic, and if trends continue, we might project that humanity will very soon enter the upper paleolithic.