What remains on the chair is the original stain or/and pigment from the paint. I doubt that any paint stripper will remove the stain. You could try a two-part wood bleach or oxalic acid. Please pay attenttion to safety labels/instructions. Qxalic acid is an organic. solution and the biggest concern is eye protection.
The steps taken by Incas to unite the empire in the given options are: 1) They built a vast network of roads, bridges, and tunnels. 2) They imposed their language and religion on conquered peoples. These factors helped them empire unification. Incas are known to have risen as the strongest Andean Civilization.
Overview of the Inca Empire. The Inca Empire was the largest prehispanic society of South America when it was 'discovered' by the Spanish conquistadors led by Francisco Pizarro in the 16th century AD. At its height, the Inca empire controlled all of the western part of the South American continent between Ecuador and Chile.