It is father of constitution (not contribution) because he helped in the making of the constitution.
"Father of contribution" is not a recognized or commonly used term. It is possible that it is a phrase someone created to describe a person who is considered influential or important in the field of contributing or making contributions. Without specific context or references, it is difficult to provide a more accurate explanation.
hipparchus
The funding, of course!
it means forced charged/compulsory contribution
mean to give facts
nothing
are
After contributing
The father of algebra is known as Diophantus. He made great contributions to mathematics in the form of number theory.
He was a hero, sailor, father of the American navy.
the major contribution of the scientist are their most important experiments they have done
contribution
Charles Darwin