Question: How many National Millennium Trails were established as a result of Executive Order 13072?

Context paragraphs:
Executive Order 13292: Executive Order 13292 was an executive order issued by United States President George W. Bush on March 25, 2003, entitled "Further Amendment to Executive Order 12958, as Amended, Classified National Security Information."  The Executive Order modified the manner in which sensitive information was handled at the time as set out by President Bill Clinton's 1995 executive order.

Oregon Historic Trails Advisory Council: The Oregon Historic Trails Advisory Council is an agency of the U.S. state of Oregon that oversees and provides advice on Oregon's sixteen historic trails, which include trails used in the 19th century by explorers and pioneer emigrants to the region as well as trails associated with the original Native American inhabitants.  The council, a division of the Oregon State Parks and Recreation Department, was created by the executive order of Governor Kitzhaber in 1998 and consists of nine volunteer members.

White House Millennium Council: The White House Millennium Council was an American organization established by Executive Order 13072 in 1998 by President Bill Clinton as part of global millennium celebrations.  The council's theme was "Honor the Past – Imagine the Future."

Executive Order 12148: Executive Order 12148 was an executive order enacted by President Jimmy Carter on July 20, 1979 to transfer and reassign duties to the newly formed agency, known as the Federal Emergency Management Agency (FEMA), created by Executive Order 12127.  The order combined several federal agencies tasked with emergency preparedness and civil defense spread across the executive departments into a unified entity that was established as an independent agency, free of Cabinet interference, with authority as the lead federal agency in a presidentially-declared disaster.

National Millennium Trail: National Millennium Trails are 16 long-distance trails selected from 58 nominees as visionary trails that reflect defining aspects America's history and culture.  The trails were chosen on June 26, 1999, by the White House Millennium Council and announced by U.S. Transportation Secretary Rodney Slater at the second international Trails and Greenways Conference in Pittsburgh, PA.

Civil War Discovery Trail: The Civil War Trust's Civil War Discovery Trail is a heritage tourism program that links more than 600 U.S. Civil War sites in more than 30 states.  The program is one of the White House Millennium Council's sixteen flagship National Millennium Trails. Sites on the trail include battlefields, museums, historic sites, forts and cemeteries.

Executive Order 13780: Executive Order 13780, titled Protecting the Nation from Foreign Terrorist Entry into the United States, is an executive order signed by United States President Donald Trump on March 6, 2017, that places limits on travel to the U.S. from certain countries, and by all refugees who do not possess either a visa or valid travel documents.  According to its terms on March 16, 2017, this executive order revoked and replaced Executive Order 13769 issued January 27, 2017.  Trump has called the new order a "watered down, politically correct version" of the prior executive order.

Executive Order 13769: Executive Order 13769, titled Protecting the Nation from Foreign Terrorist Entry into the United States, commonly known as the Muslim ban or the travel ban, was an executive order issued by United States President Donald Trump.  Except for the extent to which it was blocked by various courts, it was in effect from January 27, 2017, until March 16, 2017, when it was superseded by Executive Order 13780.  Executive Order 13769 lowered the number of refugees to be admitted into the United States in 2017 to 50,000, suspended the U.S. Refugee Admissions Program (USRAP) for 120 days, suspended the entry of Syrian refugees indefinitely, directed some cabinet secretaries to suspend entry of those whose countries do not meet adjudication standards under U.S. immigration law for 90 days, and included exceptions on a case-by-case basis.  Homeland Security lists these countries as Iran, Iraq, Libya, Somalia, Sudan, Syria, and Yemen.  More than 700 travelers were detained, and up to 60,000 visas were "provisionally revoked".

Int'l Refugee Assistance Project v. Trump: International Refugee Assistance Project v. Trump, 857 F. 3d 554 (4th Cir.  2017), is a 2017 decision of the United States Court of Appeals for the Fourth Circuit upholding an injunction against enforcement of Executive Order 13780, titled "Protecting the Nation from Foreign Terrorist Entry into the United States", an executive order signed by United States President Donald Trump on March 6, 2017.  The order places limits on travel to the U.S. from certain countries, and by all refugees who do not possess either a visa or valid travel documents.  According to its terms on March 16, 2017, this executive order revoked and replaced Executive Order 13769 issued January 27, 2017.  The case was brought by six individuals and three organizations that serve or represent Muslim clients or members, including the International Refugee Assistance Project, represented by lawyers from the National Immigration Law Center and the American Civil Liberties Union.

Board of Economic Warfare: The Office of Administrator of Export Control (also referred to as the Export Control Administration) was established in the United States by Presidential Proclamation 2413, July 2, 1940, to administer export licensing provisions of the act of July 2, 1940 (54 Stat.  714).  Brigadier General Russell Lamont Maxwell, United States Army, headed up this military entity.  It was abolished by Presidential Executive Order 8900, September 15, 1941, and its functions were transferred to the Economic Defense Board, which had been established by Presidential Executive Order 8839, July 30, 1941, to develop policies and programs to strengthen U.S. international economic relations.  The name was changed to Board of Economic Warfare by Presidential Executive Order 8982, December 17, 1941.  In turn, it was abolished by Executive Order 9361, July 15, 1943, and the functions were transferred to the newly created Office of Economic Warfare, OEM, which also assumed control of U.S. Commercial Company, Rubber Development Corporation, Petroleum Reserves Corporation, and Export-Import Bank of Washington from the Reconstruction Finance Corporation.  Consolidated into the Foreign Economic Administration, 1943.

Supporting paragraphs: Civil War Discovery Trail White House Millennium Council
Answer: sixteen