National Football League | National Register of Historic Places | National Hockey League | England national football team | National Basketball Association | National Science Foundation | National Geographic | National Trust | National Endowment for the Arts | National Geographic Society | Argentina national football team | National Trust for Places of Historic Interest or Natural Beauty | National Park Service | National League | Australian National University | National Guard | National Geographic Channel | National Institutes of Health | National Guard of the United States | National Collegiate Athletic Association | United States National Research Council | National Portrait Gallery | National Academy of Sciences | Indian National Congress | United States men's national soccer team | National Research Council | Royal National Theatre | National Gallery of Art | Mexico national football team | National University of Singapore |
As a first step, in 1994, President Clinton signed Executive Order 12906, "Coordinating Geographic Data Acquisition and Access: the National Spatial Data Infrastructure".
The United States National Spatial Data Infrastructure (NSDI), started in 1994 (see OMB Circular A-16), is considered the earliest geoportal concept.