CREATE TABLE table_3083 ("Name" TEXT, "Position" TEXT, "Period" TEXT, "Appearances\\u00b9" FLOAT, "Goals\\u00b9" FLOAT, "Nationality\\u00b2" TEXT)

Name the period for uruguay
SELECT "Period" FROM table_3083 WHERE "Nationality\u00b2" = 'Uruguay'
SELECT "Period" FROM "table_3083" WHERE "Nationality\u00b2" = 'Uruguay'