What are the rewards for finishing the "The Iniquities of History" side mission?

The ''The Iniquities of History'' side mission in Red Dead Redemption 2 is a multi-part questline involving the eccentric historian and archaeologist, Francis Sinclair. This mission is unique due to its time-travel elements and cryptic puzzles. Completing it rewards players with a rare and valuable item, the Ancient Arrowhead, which provides a permanent buff to your Dead Eye core. Additionally, you gain a significant amount of Honor and a deeper understanding of the game''s lore.\n\nTo start the mission, you must first encounter Francis Sinclair at his cabin near Strawberry. The cabin is located southwest of Strawberry, near the Little Creek River. Francis will ask you to find 10 rock carvings scattered across the map. These carvings are ancient symbols etched into rocks, and each one is tied to a specific location. Finding all 10 carvings is the primary objective of the mission.\n\nEach rock carving is marked on your map once you accept the mission, but their exact locations can still be tricky to pinpoint. For example, one carving is located on a cliffside near Mount Shann, while another is hidden in the dense forests of Roanoke Ridge. Use your Eagle Eye ability to highlight the carvings, as they can blend into the environment. Once you find a carving, interact with it to document its location in your journal.\n\nAfter collecting all 10 carvings, return to Francis Sinclair''s cabin. However, you''ll find that Francis is no longer there. Instead, you''ll discover a letter from him, revealing his true identity and the nature of his mission. This letter also contains a key to a chest in the cabin, which holds the Ancient Arrowhead. The Ancient Arrowhead is a unique trinket that reduces Dead Eye core drain by 20%, making it invaluable for combat and hunting.\n\nOne common challenge players face is locating the carvings in hard-to-reach areas. For instance, the carving near Mount Shann requires careful navigation of steep terrain. Use your horse to climb as high as possible, then proceed on foot. Another tricky location is the carving in Roanoke Ridge, which is often guarded by hostile wildlife. Equip a rifle or shotgun to deal with wolves or cougars that may attack.\n\nIn terms of game mechanics, the Ancient Arrowhead trinket is one of the few items that provide a permanent buff. Trinkets and talismans are crafted at a Fence using specific materials, but the Ancient Arrowhead is unique in that it is obtained through this mission. Its Dead Eye core buff is particularly useful for players who rely on Dead Eye during gunfights or hunting legendary animals.\n\nFor new players, it''s recommended to tackle this mission after unlocking the Eagle Eye ability, as it makes finding the carvings much easier. Experienced players can use this mission to explore lesser-known areas of the map and uncover hidden details about the game''s lore. The mission also provides a significant Honor boost, which is beneficial for players aiming for a high Honor playthrough.\n\nPractical tips for completing ''The Iniquities of History'' include using a guide or map to locate the carvings if you''re struggling, as some are well-hidden. Additionally, ensure you have enough supplies, such as health tonics and ammunition, before venturing into remote areas. Finally, take your time to appreciate the story and environmental storytelling, as this mission offers a unique glimpse into the game''s deeper mysteries.