Table:
0
A
B
C
D
E
F
G
H
1
School
City
Mascot
County
Year joined
Previous Conference
Year Left
Conference Joined
2
East Chicago Roosevelt
East Chicago
Roughriders
45 Lake
1963
Northern Indiana
1968
Indiana Lake Shore
3
East Chicago Washington
East Chicago
Senators
45 Lake
1963
Northern Indiana
1968
Indiana Lake Shore
4
Gary Emerson
Gary
Tornado
45 Lake
1963
Northern Indiana
1981
none (school closed, reopened as Emerson VPA)
5
Gary Froebel
Gary
Blue Devils
45 Lake
1963
Northern Indiana
1969
none (school became MS, closed 1977)
6
Gary Mann
Gary
Horsemen
45 Lake
1963
Northern Indiana
2004
none (school closed)
7
Gary Tolleston
Gary
Blue Raiders
45 Lake
1963
Northern Indiana
1969
none (school became MS, closed 2007)
8
Hammond
Hammond
Wildcats
45 Lake
1963
Northern Indiana
1968
Indiana Lake Shore
9
Hammond Clark
Hammond
Pioneers
45 Lake
1963
Northern Indiana
1968
Indiana Lake Shore
10
Hammond Tech
Hammond
Tigers
45 Lake
1963
Northern Indiana
1968
Indiana Lake Shore
11
Valparaiso
Valparaiso
Vikings
64 Porter
1963
Northern Indiana
1968
Independents
12
Whiting
Whiting
Oilers
45 Lake
1963
Northern Indiana
1968
Indiana Lake Shore
13
Hammond Gavit
Hammond
Gladiators
45 Lake
1966
Independents
1968
Indiana Lake Shore
14
Hammond Morton
Hammond
Governors
45 Lake
1966
Independents
1968
Indiana Lake Shore
15
Hobart
Hobart
Brickies
45 Lake
1966
Independents
1968
Independents
16
Andrean
Gary
59ers
45 Lake
1968
Independents
1975
Independents (school moved to Merrillville )
17
Gary Wirt
Gary
Troopers
45 Lake
1970
Calumet
2009
school closed

Questions and formulas:
Question: What city joined the Independents conference after 1963?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,(E1>1963)*(H1="independents")),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H17,(E2:E17>1963)*(H2:H17="independents")),2))
Level: medium
Question: What is the year that the Gary team with mascot of the Tornado joined?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,(B1="gary")*(C1="tornado")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H17,(B2:B17="gary")*(C2:C17="tornado")),5))
Level: medium
Question: What was the previous conference for the team with the Governors as their mascot that joined the Indiana Lake Shore conference?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,(H1="indiana lake shore")*(C1="governors")),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H17,(H2:H17="indiana lake shore")*(C2:C17="governors")),6))
Level: medium
Question: What is the year that the Roughriders left the conference?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,C1="roughriders"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H17,C2:C17="roughriders"),7))
Level: medium
Question: What conference did the city of Valparaiso join?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,B1="valparaiso"),8))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H17,B2:B17="valparaiso"),8))
Level: medium
Question: What is the mascot of Hammond Tech?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:H1,(B1="hammond")*(A1="hammond tech")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:H17,(B2:B17="hammond")*(A2:A17="hammond tech")),3))
Level: medium