| Timeline | Early 20th century (alternate timeline) |
| Innovations | Advanced aerial and submarine technology |
| Historical events | A worldwide arms race • First humans sent to Mars by Germany (1929) • The space race begins |
| Political ideology | Techno-socialism |
| Rising superpowers | Japan • Germany • Brazil |
| Geopolitical shifts | Waning influence of colonial powers • Decolonization movements gain momentum |
