There are nearly a dozen or more saints named Athanasius so we need a specific individual to give a specific answer.
Thomas Mar Athanasius was born on 1836-10-07.
Athanasius of Balad was born in 634.
Athanasia of Aegina was born in 790.
Athanasius III Dabbas died on 1724-08-05.
Will St Leger was born in 1972.
Martin St. Pierre was born on 1983-08-11.
William St. Clair Tisdall was born in 1859.
Dave St. Peter was born in 1967.
Athanasius Treweek was born in 1912.
Athanasius Allanson was born in 1804.
Athanasius of Alexandria was born in 296.
Athanasius Kircher was born on May 2, 1601.
Athanasius I - Bishop of Naples - was born in 830.
Lucian Athanasius Reinhart was born in 1922.
Athanasius III Dabbas was born in 1647.
Athanasius Schneider was born on 1961-04-07.
Patriarch Athanasius I of Constantinople was born in 1230.
Athanasius IV Jawhar was born on 1733-09-18.
St. Athanasius was one of the four fathers of the church, along with Sts. Jerome, Ambrose, and Pope Gregory the Great.
Athanasius Kircher was born on May 2, 1601.