CREATE TABLE table_10878 ("Player" TEXT, "Position" TEXT, "Date of Birth  ( Age ) " TEXT, "Caps" FLOAT, "Club/province" TEXT)

When was the player born who has 1 caps?
SELECT "Date of Birth (Age)" FROM table_10878 WHERE "Caps" = '1'
SELECT "Date of Birth (Age)" FROM "table_10878" WHERE "Caps" = '1'