May 30, 2019
- 17:5017:50, May 30, 2019 diff hist −1,421 Technological Achievement Tiers →Tier 5: Atomic Age
- 17:5017:50, May 30, 2019 diff hist −853 Technological Achievement Tiers →Tier 7: Pre-Industrial
- 17:5017:50, May 30, 2019 diff hist −840 Technological Achievement Tiers →Tier 6: Industrial
- 17:4917:49, May 30, 2019 diff hist −5 Technological Achievement Tiers →Tier 4: Space Age
- 17:4917:49, May 30, 2019 diff hist +34 Technological Achievement Tiers →Tier 3: Space-Faring
- 17:4617:46, May 30, 2019 diff hist +6 Technological Achievement Tiers →Tier 2: Interstellar
- 17:4617:46, May 30, 2019 diff hist +8 Technological Achievement Tiers →Tier 1: World Builders