From 10/18/1917 to 3/4/1959 is: 41 years, 4 months, 14 days
http://en.wikipedia.org/wiki/20th_Fighter_Wing
Active 18 October 1917 — present
Country United States
Branch Air Force
Part of Air Combat Command
The 20th Fighter Wing (20 FW) is a wing of the United States Air Force and the host unit at Shaw Air Force Base South Carolina.
The 20th FW is under Air Combat Command's Ninth Air Force.
In March 1986, the 66th Electronic Combat Wing detached the 42nd ECS to the 20th TFW to take part in Operation Eldorado Canyon, the raid on Libya.
From 6/25/1952 to 2/14/1986 is: 33 years, 33 weeks, 3 days
http://en.wikipedia.org/wiki/48th_Tactical_Fighter_Wing
Active June 25, 1952
The 48th Fighter Wing (48 FW), formerly 48th Tactical Fighter Wing, was part of the United States Air Force Third Air Force, now assigned to HQ Air Command Europe, is based at RAF Lakenheath, England and is the only F-15 unit based in Europe. It was given the name "Statue of Liberty Wing" on July 4th, 1954 and remains the only USAF unit with both a name and a numerical designation. The wing was involved in Operation El Dorado Canyon in 1986
From 6/24/1952 to 2/14/1986 is: 33 years, 33 weeks, 4 days
http://en.wikipedia.org/wiki/Fernando_L._Ribas-Dominicci
Major Fernando Luis Ribas-Dominicci (June 24, 1952 – April 15, 1986), born in Utuado, Puerto Rico, was an F-111F pilot in the United States Air Force. He was killed during Operation El Dorado Canyon, the April 15, 1986 U.S. air raid on Libya.
In 1985, he completed his master's degree in aeronautical science at the Embry-Riddle Aeronautical University in Daytona Beach, Florida, USA.
Operation El Dorado Canyon On April 14, 1986, in response to acts of terrorism thought to be sponsored by Libyan leader Muammar al-Qaddafi — in particular, the Berlin discotheque bombing of April 6 — and against the backdrop of heightened tension and clashes between the Libyan and U.S. navies over Libya's disputed territorial water claims in the Gulf of Sidra, the United States launched a surprise attack on key facilities in Tripoli and other parts of Libya. The attack was code-named Operation El Dorado Canyon.
3-3-4-59 >> 5/11/1985
http://en.wikipedia.org/wiki/Embry-Riddle_Aeronautical_University
Embry-Riddle Aeronautical University (ERAU) is a not-for-profit, non-sectarian, coeducational private university with a history dating back to the early days of aviation.
Embry-Riddle Aeronautical University began on December 17, 1925, when T. Higbee Embry and John Paul Riddle formed the Embry-Riddle Company at Lunken Airport in Cincinnati, Ohio. The company was financed by Embry, a wealthy aviation enthusiast who served as company president. Riddle was named general manager, and the two began to sell Waco Aircraft in Cincinnati. On December 17, 1927, the Embry-Riddle Company established Cincinnati's first regular air mail service, from Cincinnati to Chicago.
11959 weeks to 12/23/1968
http://en.wikipedia.org/wiki/Utuado%2C_Puerto_Rico
Utuado was founded October 12, 1739 by Sebastian de Morfi
I calculated that Apollo 8 entered orbit of the Earth's moon on Monday, 12/23/1968, Hawaii time.
http://en.wikipedia.org/wiki/Apollo_8
Apollo 8 was the second manned mission of the Apollo space program, in which Commander Frank Borman, Command Module Pilot James Lovell and Lunar Module Pilot William Anders became the first humans to orbit around the Moon.
Launch: December 21, 1968
Landing: December 27, 1968
http://en.wikipedia.org/wiki/Praseodymium
Praseodymium is a chemical element in the periodic table that has the symbol Pr and atomic number 59.
Notable characteristics
Praseodymium is a soft silvery metallic element, and belongs to the lanthanide group. It is somewhat more resistant to corrosion in air than europium, lanthanum, cerium, or neodymium, but it does develop a green oxide coating that spalls off when exposed to air, exposing more metal to oxidation.
