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During the 1990s, cartographic production was primarily driven by major humanitarian crises in Africa and Central America, the proliferation of WMDs, the rise of narcotics trafficking, the Middle East Peace Process, the Persian Gulf war, the breakup of the Communist Bloc, and US peacekeeping operations in Bosnia and Herzegovina.
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radio navigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near the Earth ...
The Historical Topographic Map Collection, or HTMC, provides a comprehensive digital repository of all scales and all editions of U.S. Geological Survey (USGS) printed topographic maps that is easily discovered, browsed, and downloaded by the public at no cost.
11 lip 2017 · 2,000+ Years Ago – Ancient Greeks triangulated their geographical location using only the stars. 1933 – Radar is finally on the map, as the U.S Naval Research Laboratory’s Leo Young, proposed the use of a pulse radar technique to be able to detect aircraft and ships.
3 sty 2024 · Starting in the early 1970s, the US Department of Defense built the GPS, which relies on satellites orbiting the Earth to identify places on the planet. In the early 1990s, the system was fine-tuned, so by the turn of the millennium, GPS receivers were accurate within centimeters and even sub-millimeters.
OpenHistoricalMap is an interactive map of the world throughout history, created by people like you and dedicated to the public domain. Learn More. Start Mapping. OpenHistoricalMap collaboratively stores and displays map data throughout the history of the world.
20th-century maps of the United States: · 1900s · 1910s · 1920s · 1930s · 1940s · 1950s · 1960s · 1970s · 1980s · 1990s · Subcategories This category has the following 43 subcategories, out of 43 total.
