<Earthy History Map Markers with Yellow Tones>
1. Earth Brown - 
                            
                            #8B5B29
                         - A rich, warm brown reminiscent of fertile soil, perfect for grounding historical contexts.
2. Olive Green - 
                            
                            #5B8C29
                         - A muted green that symbolizes growth and nature, ideal for representing ancient civilizations.
3. Terracotta - 
                            
                            #D2693D
                         - A warm, clay-like orange that evokes rustic pottery and ancient architecture.
4. Golden Sand - 
                            
                            #D8B74B
                         - A warm, golden yellow that represents sunlight and the sands of time, adding vibrancy to the palette.
5. Slate Gray - 
                            
                            #7A7B7A
                         - A cool, muted gray that provides a modern touch while symbolizing stone and endurance.
6. Rust Red - 
                            
                            #C85A3B
                         - A deep reddish-brown that reflects the aged patina of historical artifacts.
7. Dusty Olive - 
                            
                            #A49A7C
                         - A soft, muted olive tone that conveys a sense of history and natural landscapes.
8. Clay Gray - 
                            
                            #B1A7A1
                         - A gentle gray with clay undertones that represents the essence of ancient pottery and remains.
9. Forest Green - 
                            
                            #2E4D2B
                         - A deep green that symbolizes the richness of nature and the longevity of history.

This revised earthy color palette incorporates a vibrant golden yellow, adding warmth and brightness while maintaining the historical essence of the colors. The golden sand color enhances the overall appeal, making the map markers more eye-catching.

Would you like to see additional variations or perhaps different shades of yellow? Or do you have any specific historical themes you want to focus on for the markers?