This document provides a historical timeline and context for the junction of Jalan Ampang and Jalan Tun Razak in Kuala Lumpur, Malaysia. It outlines the macro and micro history of the area from the 1850s to present day, including key events, development milestones, and changes in architectural style over time. The document also includes maps and diagrams showing land use zoning, daily activity patterns at different nodes in the area, transportation routes, and shadow casting patterns at different times of day.