Prepare in advance if you need to do some official business. The positive moment is that if you visit Russia during a grand holiday, you will see the most beautiful side of Russian culture and people. Everyone will be in good mood and smiling. You will immediately understand what famous Russian hospitality is like.
The time period of he Incas was ABOUT 1200-and about ended in 1525 when they were conquered by the Spanish.
The Incas kept lists of their kings (Sapa Inca) so that we know of such names as Pachacuti Inca Yupanqui (reign c. 1438-63 CE), Thupa Inca Yupanqui (reign c. 1471-93 CE), and Wayna Qhapaq (the last pre-Hispanic ruler, reign c. 1493-1525 CE).