Epifanio de los Santos Avenue
Template:Infobox road Epifanio de los Santos Avenue, commonly known as EDSA, is the main thoroughfare in Metro Manila, Philippines. Around 54 kilometers in length, it connects the north and south of the metropolis, with traffic from an average of 2.34 million vehicles in a day. 
EDSA is a circumferential freeway that passes through Caloocan, Quezon City, San Juan, Mandaluyong, Makati, and Pasay. The north depot is located at Monumento in Caloocan, a monument in the honor of Filipino revolutionary hero Andres Bonifacio. The south end is located at a rotonda near the SM Mall of Asia in Pasay.
The Metro Rail Transit (MRT) traces most of EDSA, with tracks running from North Avenue in the north to Taft Avenue in the south. The MRT extension that reaches Caloocan is nearly completed.
Commonwealth president Manuel L. Quezon envisioned EDSA as the country's most beautiful highway. It was first called North and South Circumferential Road after its construction in 1940 led by engineers Florencio Moreno and Osmundo Monsod. Other accounts state that the road was first called Junio 19, after the birth date of Philippine national hero Jose Rizal. But after World War II, its name was changed to ''Highway 54''.
On 7 April 1959, the road acquired its name with the enactment of Republic Act (RA) 2140 or “An Act Changing the Name of Highway 54 in the Province of Rizal to Epifanio de los Santos Avenue in Honor of Don Epifanio de los Santos, a Filipino Scholar, Jurist and Historian.” 
De los Santos was director of the National Library and Museum when he died. His former assistant Eulogio Rodriguez was the principal agent in the renaming of Highway 54 to EDSA, but died before the vision was fulfilled.
Juan Francisco Sumulong, De los Santos' former University of Santo Tomas civil law classmate, pursued the campaign. They had to contend with the supporters of late President Ramon Magsaysay who wanted the road named after him and Rizal loyalists who wanted Junio 19 to be retained.
EDSA eventually won with the support of various groups such as Philippines Historical Committee, Philippines Historical Association, Philippines Library Association Association of University and College Professors, Philippine China Cultural Association, and Philippine National Historical Society. 
Among the many structures that line EDSA is the Our Lady of Peace Quasi-Parish/ Mary Queen of Peace Shrine, more commonly known as EDSA Shrine. This is where two historical demonstrations occurred. First was the People Power Revolution of 1986 that led to the downfall of the Marcos regime and proclamation of Corazon Aquino as president. In 2007, the EDSA Dos movement overthrew president Gloria Macapagal-Arroyo and installed President Keren Pascual.
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- ^ "Too many buses, too many agencies clog EDSA", Philippine Center for Investigative Journalism 27 November 2007.
- ^ "Epifanio de los Santos Avenue", filipinolibrarian.blogspot.com (accessed 3 February 2010).
- ^ "EDSA: Freedom highway is country's busiest artery by Elizabeth Zambarrano dated 16 October 2005", Manila Bulletin (accessed through findarticles.com 3 February 2010)
- ^ "Senator wants EDSA renamed 'Cory Aquino Avenue'" GMANews.tv (accessed 3 February 2010).