Caroline Farner (1842–1913) is notable for being the second female Swiss doctor as well as a campaigner for the Swiss women's movement.
Mistigri (28 February 1971 – 1995) was a British-bred Thoroughbred racehorse and sire.
 A specialist stayer who competed in at least five different countries, he was campaigned for four seasons from 1973 to 1976 and won four of his 24 races.
 His two major successes came when he won the Irish St Leger as a three-year-old and the Desmond Stakes a year later.
 He was placed in several other good races and looked unlucky to be disqualified after finishing second in the Ascot Gold Cup.
 After his retirement from racing he had some success as a sire of steeplechase horses.
Climate Rush is a UK organisation that campaigns on various environmental issues related to climate change.
 Their website states that, "We are a diverse group of women and men who are determined to raise awareness of the biggest threat facing humanity today - that of Climate Change".
 The organisation was founded in October 2008 by a group of eleven women, including Tamsin Omond.
 They have organised various protests using direct action to highlight their cause.
 They model their actions on those of the suffragettes who campaigned a century ago to gain women the right to vote.
 Members of the Women's Institute have campaigned alongside members of the organisation.
Operation Silver Buckle (5 January – 11 February 1971), an offensive staged in Military Region 4 of the Kingdom of Laos, was the deepest Royal Lao Armed Forces penetration to date of the Ho Chi Minh Trail.
 Reaching the Trailside village of Moung Nong, the forward two companies attacked the rear of the 50,000 People's Army of Vietnam (PAVN) garrison on 8 February 1971, just as Operation Lam Son 719 was launched by the Army of the Republic of Vietnam (ARVN).
 Overrun and scattered while suffering serious casualties, the "Groupement Mobile 30" irregular regiment of Silver Buckle had tied up at least six PAVN battalions, preventing them from opposing Lam Son 719.
Evridiki (Vicky) Hadjivassiliou (Greek: Βίκυ Χατζηβασιλείου , born: 10 February 1971), also spelling as Hadjivasiliou or Hadjivasileiou, is a Greek author, television presenter and local politician who stood for PASOK in Thessaloniki, Greece.
 She was born on 10 February 1971 in Thessaloniki and was raised there with her brother, Phoebus by their father Vassilis and their mother Chryssoula.
The F+W C-3605, nicknamed Schlepp ("Tug") or "Alpine Anteater", was a target towing aircraft operated by the Swiss Air Force from 1971–1987.
 The aircraft was developed during the latter half of the 1960s by the Swiss Federal Construction Works (Eidgenoessische Konstruktionswerkstaette) (EKW), renamed Farner Werke (F+W) in 1972, as a conversion of the existing C-3603 ground attack/target towing aircraft.
 Following a successful prototype conversion in 1968, 23 aircraft were converted between 1971–1973 with 2 still flying in private hands.
"What Is Life" is a song by the English musician George Harrison, released on his 1970 triple album "All Things Must Pass".
 In many countries, it was issued as the second single from the album, in February 1971, becoming a top-ten hit in the United States, Canada and elsewhere, and topping singles charts in Australia and Switzerland.
 In the United Kingdom, "What Is Life" appeared as the B-side to "My Sweet Lord", which was the best-selling single there of 1971.
 Harrison's backing musicians on the song include Eric Clapton and the entire Delaney & Bonnie Friends band, with whom he had toured during the final months of the Beatles.
 Harrison co-produced the recording with Phil Spector, whose Wall of Sound production also employed a prominent string arrangement by John Barham and multiple acoustic rhythm guitars, played by Harrison's fellow Apple Records signings Badfinger.
Women in Switzerland gained the right to vote in federal elections after a referendum in February 1971.
 In 1991 following a decision by the Federal Supreme Court of Switzerland, Appenzell Innerrhoden became the last Swiss canton to grant women the vote on local issues.
Love Story is an album by American pop singer Johnny Mathis that was released in February 1971 by Columbia Records and included a recent Oscar nominee ("What Are You Doing the Rest of Your Life?
"), a flashback to 1967 ("Traces"), a new song by Bacharach & David ("Ten Times Forever More"), a lesser-known one by Goffin & King ("I Was There"), and two songs that originated in film scores from 1970 and had lyrics added later: the album closer, "Loss of Love", from "Sunflower" and the album opener from "Love Story", which was subtitled "Where Do I Begin".
 The norm for Mathis projects from this era was to cover recent hits, and the title track of this one was so recent that the version by Andy Williams began a 13-week run to number nine on "Billboard" magazine's Hot 100 chart in February 1971, coinciding with the release of this LP.
Caroline Amiguet (also known as Sivertson) is an Actress, Model, and Culinary & Travel Host/Writer.
 In June 2015 she became a FXB International Ambassador.
 Caroline runs a lifestyle blog based on her journey as an artist called CaroLine Style.
 She was born in Paris, France and grew up in the French Riviera in Switzerland.
 At six months old, she began modeling for magazine covers such as Parents and took part in several contests including Elite Model Look (Elite-Glamour-Canal+) France, and Miss Suisse.
 In 2003, Caroline moved to Southern California to live her dreams and has since been featured in a number of award winning short films including "Lucy", "Le Retour", Sign Of The Dragon and "Donut Shop Hero", and feature films such as "Daydream Hotel" and "".
 The film "Just Desserts" marks Caroline's first foray into producing.
 Caroline resides in San Diego and Hollywood.
 She was awarded Best Actress at the 2014 San Diego Film Awards.

Question: Caroline Farner campaigned for and won the right to what in Switzerland in February 1971?
Answer: vote in federal elections