One week before June 18 is June 11. This is calculated by subtracting seven days from June 18.
11 February
July 18, 2013.
The Mensa Calendar Challenger for June 18, 2012, posed the question regarding the next date that shares the same day of the week and the same numerical date. The answer is June 18, 2023, as both dates fall on a Sunday.
18 June 1979 was a Monday.
June 18 1970 was a Thursday.
June 18, 1947 was a Wednesday.
June 18 1812 was a Friday.
June 18 2010 was Friday.
June 18, 1964 fell on a Thursday.
June 18, 1984 fell on a Monday.
June 18, 1966 fell on a Saturday.
June 18, 1957 fell on a Tuesday.