Warcraft
Races
Azeroth has no shortage of uniquely colourful races, each with long histories and traditions. As this site pertains to Sylvanas, this section will detail the races in which she interacts with the most: the races of the Horde. This is a general overview of each race and by no means comes close to accurately describing what makes each one so unique and wonderful, but hopefully it will suffice in producing a general understanding in relation to the content of Windrunner.
Human • Dwarf • Gnome • Night Elf • Draenei • Worgen
Pandaren
Orcs

Thrall, a young shaman, was able to free the orcs from human slavery and led his people to the shores of Kalimdor, creating a new Horde with new ideals. The orcs claimed a small peninsula for their own, naming it Durotar after Thrall's father and would go on to create the city of Orgrimmar.
Trolls

Thrall was able to save the orcs and trolls but unfortunately, Sen'jin was sacrificed. His son, Vol'jin, became the new leader of the tribe and out of deep gratitude, the Darkspear joined the Horde and went with Thrall to Kalimdor. When the orcs created Durotar, the trolls claimed the Echo Islands as their new home.
Tauren

Under the leadership of Cairne, all tauren tribes were welcome to their new home in the grasslands of Mulgore. Cairne swore allegiance to the Horde and grew close to Thrall and Vol'jin, their peoples sharing much in common. Many years later, Cairne died when he challenged Garrosh to honorable combat and Baine, his son, would take his place as chieftain.
Forsaken

Eventually, the Lich King's grip on the undead in Lordaeron was weakened enough for Sylvanas Windrunner to free herself from his control. She rallied other undead who were able to do the same and led them in battle to retake Lordaeron. Now called the Forsaken, when Sylvanas attempted to reach out for allies, Archdruid Hamuul Runetotem responded and convinced Thrall to allow them into the Horde for a better chance at defeating the Lich King.
Blood Elves

Without the arcane power of the Sunwell to sustain them, the blood elves turned to other sources of magic to sate their withdrawals. Kael'thas ventured to Outland to find a cure for their magic addition, leaving the kingdom in the hands of Lor'themar Theron. Lor'themar began to look for new allies to help defend Quel'Thalas and the only group to respond was the Forsaken. Sylvanas, being a high elf herself in life, encouraged the blood elves to become part of the Horde.