“Earth-Shaker” — broke the Chanca siege 1438, built Cuzco in gold, founded Tawantinsuyu.
In 1438 the Chancas besieged Cuzco; old Viracocha Inca fled. Prince Cusi stayed, rallied farmers, and won — legend says field stones rose as soldiers. Crowned Pachacuti, he rebuilt Cuzco with Sacsayhuamán walls and Coricancha gold, and with son Topa conquered the south Andes. Every later Sapa Inca claimed his blood (WHE, Pachacuti).
Chancas 40,000 strong surround Cuzco. Cusi prays to Viracocha; pururauca stones rise. Chanca king captured, skull made a cup. Old king abdicates; Cusi becomes Pachacuti — “he who shakes the earth.”
City replanned as a puma; Coricancha sheeted in 700 gold plates; Sacsayhuamán zigzag walls of 100-ton stones fitted without mortar. Mummies of kings kept palaces. Machu Picchu and Ollantaytambo raised as royal estates.
https://www.worldhistory.org/Pachacuti/https://www.britannica.com/topic/IncaHe shook the earth and the poor trembled.— Quechua praise-name