Collection of historical events when Neptune was in Aries: 1861-1874

This post is a collection of historical events during the last Neptune transit in Aries (1861-1874) that are relevant to this transit. Neptune represents idealism and dreams, while Aries represents courage and aggression. The next time Neptune will be in Aries will be between 2025 and 2039. There are 7 events listed below chronologically. Source: Wikipedia

• 1863: International Red Cross is established
• 1865: Slavery is abolished in the United States
• 1869: Periodic table is discovered
• 1872: Yellowstone becomes the first U.S. national park
• 1873: James Clerk Maxwell publishes A Treatise on Electricity and Magnetism
• 1874: First impressionist exhibition