Star Wars Day on May 4, 1979, the day Margaret Thatcher took office as Prime Minister of the United Kingdom. An online news article from the Danish public broadcaster says her political party, the Conservatives, placed a congratulatory advertisement in "The London Evening News", saying "May the Fourth Be with You, Maggie. Congratulations." The saying was used in a UK Parliament defence debate on May 4, 1994. Astrophysicist and author Jeanne Cavelos used the saying on page 94 of her 1999 book "The Science of Star Wars". In 2008, the first Facebook groups appeared, celebrating "Luke Skywalker Day," with the same catchphrase. While
Comparison of Star Trek and Star Wars Wars" a "derivative" of "Star Trek". A few references to "Star Wars" have been inserted into "Star Trek" films. For fleeting moments, one can see ships and droids from "Star Wars" in both "Star Trek" (2009) and "Star Trek Into Darkness" (2013). Some "Star Trek" films and television episodes used the "Star Wars" animation shop, Industrial Light & Magic, for their special effects. When Roddenberry was honored at a "Star Trek" convention late in life, a congratulatory letter from Lucas was presented by an actor dressed as Darth Vader. A few years earlier, Roddenberry had contributed an entry in honor