This was inspired and uses a lot of material from this [link] and then I took a few liberties to fill the world in more.
Major ASB ahead......
In this world a few alterations in history that left no butterflies whatsoever (apparently) led to major evolutionary changes. First of all dinosaurs survived in South America and eventually evolved into sapients before humanity.
Elsewhere changes across the rest of the world led to the evolution of other animals that appeared similar to creatures from mythologies. One change that most affected the world was the evolution of several different groups of sapient humanoids that formed their own civilizations.
Humanity is the most generalised of species and thus is the most widespread species of sapients in the world.
Humanity initially evolved on the continent of Africa but changes in climate in combination of a far more hostile environment in OTL led to nearly the entire species being driven from the continent into Eurasia. They spread into Europe and the Middle East where they flourished and formed numerous prosperous civilizations. The most famous being the Roman Empire which most of humanity claims legacy to.
The leading human nation is the British Empire which rose to supremacy due to it's centralised government, geographical advantages, rich resource base and sheer bloody minded belligerence. Also the presence of other violent races in areas that other powers colonised in OTL helped.
Great Britain is the economic centre of the world and whilst no longer the workshop of the world is now the centre for trade transactions, business deals and stock exchange.
Britain's empire overseas is largely self-governing by now with the exception of the African territories which are still too severely underpopulated and are still under colonial control.
The Autonomous Viceroyalties are self-governing states that are connected to Britain through economic ties, a shared military and nominal ties to the British crown. Together they make up the largest single empire in the world and one of the major powers.
The other human nations are united under the Human Consortium. The Consortium was formed after the Second Great War after the defeat of the Silvan Reich. The Reich had overrun most of Europe during the war and the quick defeat of most human nations led to a sense of unity in order to combat future threats (the continued existence of the Reich also helped).
Humanity is the master of mass-production and effective but simple technology. They are the most adept at creating advanced weaponry having been the creators of mechanical rifles, automatic weaponry, military vehicles and atomic weapons.
The Silvan Reich is the homeland of the elves. Originally the nations that would make up the Reich were a collection of kingdoms and duchies that were the bane of the human nations through invasions (fall of the Roman Empire) and piracy (the Vikings) until the human nations were advanced enough to defeat the less robust species.
The beginning of industrialisation was initially a threat to the arboreal homes of the elves but under new leadership they quickly learnt to adapt. The fall of the corrupt and vampiric Hapsburg Clan led to the rise of the Sliga Nationalist Party (ITTL Nazis) which quickly spread across and united the Elven nations.
In the 1940s the Sliga Party planned to expand across Europe in order to attain Lebensraum for the Elven people. It did not end very well and left much of Eastern Europe chemically scarred by the elves weaponry.
The defeat of the elves left the Reich a crippled state that had suffered horrendous military and civlian casualties from the war. Though the war had defeated the Reich the Sliga Party remained in power through a combination of war weariness, enemy casualties and the near obliteration of any capable opposition.
The elves are masters of biotechnology and have created t e most effective methods of creating synthetic and cloned foods to feed their population without having to resort to deforestation for agriculture and have finally been able to regain the forests of their history.
The ULSK is the homeland of the Lycans. Lycans evolved from baboon like primates that evolved sapience but returned a semi-quadrapedal gait that became useful on the steppes of Central Asia.
The Lycanthropes existed under a collection of Khanates (Lycanthropes instinctively follow a dominant alpha so democracy is largely foreign to them) and coalesced together under a supreme alpha male. The ULSR was officially created during the First Great War where their original empire fragmented and then reformed together under a strange ideology known as Communism. Despite the democratic theory behind the ideology their instincts lead to a dictatorship.
However the new regime lead to the industrialisation of the Union. The Second Great War saw the near extermination of the population west of Moscow by the elves and the destruction of the centralised government. This led to the resurrection of the old Khanate systems as the rural conservatives made up the majority of the population in the post-war situation.
The Saurians or Dinosauroids are the oldest sapients and civilization on earth.
The Dinosauriods are a completely alien species compared to all the others that exist within the tropical forests of the Americas (with a subspecies in the Mexican deserts).
The Saurians are a race that has learnt how to utilise the reptilian fauna and tropical resources of their homeland to create a strange semi-biological technology.
Saurian society is made up of a caste system with a technocratic government that uses a rationalist ideology to control the population.
Until recently the Saurians were an isolationist species but emerged from their hermit nation state due to the advancement of other species technology.
The Goblins are a traditionally nomadic species that are famous for violent migrations. The Goblins spread from Africa into Northern Africa and the Middle East ousting and nearly exterminating the human population.
The Goblins do not have a history of specific nations but have traditionally settled around the Middle East and founded cities and camps. In the 18th Century the more successful Osman Clan formed a centralised nation state.
After the Second Great War and the decolonisation of the Middle East the other species sought to stabilise the region and form a new nation for the species.
However the war had exterminated the Osman Clan which left the Saud Clan as the only credible Clan to rule the Caliphate that the other species were forming. Despite their best (genocidal) efforts to defeat opposition from the religious extremists resistance remains.
Goblins utilise anything they can scavenge and cobble together they especially love Lycan technology due to it's reliability and endurance.
Kappa are an amphibious species that evolved in the tropical wetlands of East Asia and are scaled and streamlined in order to assist in swimming.
The Kappa concentrated around water and the major rivers of China and India became major population centres. The Kappa are masters of building semi-submerged cities that are as much within the water as they are above it.
The Kappa are often pictured as serene, cultured philosophers but are also a stubborn species that did avoid the worst of colonisation from humanity.
The Kappa at one time did suffer from a militant group that formed the Nihonese State into an entity known as The Empire of the Rising Sun. This empire led to many military atrocities during the Second Great War which culminated in their defeat and the dropping of several atomic weaponry on major cities.
The Kappa have since then recovered credibility since the War and formed together into a united Confederation. The Kappa have been in extensive negotiations with the British and the Consortium and some groups within the three governments are considering political union.
The Kappa are masters of agriculture, building techniques and biological engineering. There has been consideration towards using Kappa technology to help terraform Mars.
TECHNOLOGY & SOCIETY:
Technology is far more advanced than OTL due to the extended warfare as well as the eventual formation of racial unions by the worlds sapient species.
Society is authoritarian by necessity and often elitist.