Question: When did the birthplace of the Here Come the Girls performer elect its first black mayor?

Knowledge 1: Here Come the Girls (song)
"Here Come the Girls" is a song written by Allen Toussaint and originally recorded by Ernie K-Doe and released in 1970. It failed to chart at that time. [SEP] Knowledge 2: Mother-in-Law Lounge
The Mother-in-Law Lounge is a live music venue, pub and a shrine in New Orleans, Louisiana dedicated to the memory of rhythm and blues singer, Ernie K-Doe. It is at the downtown river corner of Claiborne Avenue and Columbus Street in the 7th Ward of New Orleans. The exterior of the building is decorated with colorful murals depicting K-Doe and other prominent figures in New Orleans music, especially people who collaborated with K-Doe. [SEP] Knowledge 3: Black people
Though Brazilians of at least partial African heritage make up a large percentage of the population, few blacks have been elected as politicians. The city of Salvador, Bahia, for instance, is 80% people of color, but voters have not elected a mayor of color. Journalists like to say that US cities with black majorities, such as Detroit and New Orleans, have not elected white mayors since after the civil rights movement, when the Voting Rights Act of 1965 protected the franchise for minorities, and blacks in the South regained the power to vote for the first time since the turn of the 20th century. New Orleans elected its first black mayor in the 1970s. New Orleans elected a white mayor after the widescale disruption and damage of Hurricane Katrina in 2005.
Knowledge 1: Here Come the Girls (song)
"Here Come the Girls" is a song written by Allen Toussaint and originally recorded by Ernie K-Doe and released in 1970. It failed to chart at that time. [SEP] Knowledge 2: Mother-in-Law Lounge
The Mother-in-Law Lounge is a live music venue, pub and a shrine in New Orleans, Louisiana dedicated to the memory of rhythm and blues singer, Ernie K-Doe. It is at the downtown river corner of Claiborne Avenue and Columbus Street in the 7th Ward of New Orleans. The exterior of the building is decorated with colorful murals depicting K-Doe and other prominent figures in New Orleans music, especially people who collaborated with K-Doe. [SEP] Knowledge 3: New York City
The present mayor is Bill de Blasio, the first Democrat since 1993. He was elected in 2013 with over 73% of the vote, and assumed office on January 1, 2014.
Knowledge 1: Here Come the Girls (song)
"Here Come the Girls" is a song written by Allen Toussaint and originally recorded by Ernie K-Doe and released in 1970. It failed to chart at that time. [SEP] Knowledge 2: Mother-in-Law Lounge
The Mother-in-Law Lounge is a live music venue, pub and a shrine in New Orleans, Louisiana dedicated to the memory of rhythm and blues singer, Ernie K-Doe. It is at the downtown river corner of Claiborne Avenue and Columbus Street in the 7th Ward of New Orleans. The exterior of the building is decorated with colorful murals depicting K-Doe and other prominent figures in New Orleans music, especially people who collaborated with K-Doe. [SEP] Knowledge 3: Detroit
Beginning with its incorporation in 1802, Detroit has had a total of 74 mayors. Detroit's last mayor from the Republican Party was Louis Miriani, who served from 1957 to 1962. In 1973, the city elected its first black mayor, Coleman Young. Despite development efforts, his combative style during his five terms in office was not well received by many suburban residents. Mayor Dennis Archer, a former Michigan Supreme Court Justice, refocused the city's attention on redevelopment with a plan to permit three casinos downtown. By 2008, three major casino resort hotels established operations in the city.

Answer: 1970s