Exploration Expansion

Imperial Trans-Antarctic Expedition (Endurance, Ernest Shackleton, 1914–1917)

1914 - 1917

ICESat and ICESat-2 polar ice altimetry missions (2003–present)

2003 - 2025

Ice Sheet Model Intercomparison Project (ISMIP6) and related experiments (2018–present)

2016 - 2025

Ice-Free Corridor deglaciation and human passage evidence (c. 16,000–11,000 BP)

24000 BCE - 8750 BCE

ICANN and the Global Domain Governance Transition (1998–2016)

1998 - 2016

Hybrid zones and replacement events between Homo sapiens and archaic hominins in Eurasia (c. 120–30 ka)

HTTP/HTML Standards Development and Major Revisions (1990–2014)

1989 - 2014

Horn Scientific Expedition to Central Australia (1894)

1894 - 1897

Homo ergaster dispersal into the Levant and Eurasia (c. 1.8–1.2 Ma)

1900 BCE - 1200 BCE

Homo erectus colonization of Java and Sangiran (c. 1.6–0.7 Ma)

1891 - 2019

Homo erectus at Dmanisi, Georgia (c. 1.85–1.77 Ma)

1849 BCE - 2013

Homestead Act settlements on the Great Plains (1862–1934)

1862 - 1936