Nobody knows
You could say that there is no mode or that the data are amodal.
In math best
math was created when time began
Black Math was created in 2003.
Latha Math was created in 2010.
Anand Math was created in 1952.
Math League was created in 1977.
Gaudiya Math was created in 1920.
Math for America was created in 2004.
Cheetah Math was created in 2007.
Math Invaders was created in 1998.
Zentralblatt MATH was created in 1931.