On October 15th of 2009 the parliament of the city of Buenos Aires passed law 3.220 decreeing the 4th of September as the "dia de la historieta," the day of comics. This day was chosen in honor of Héctor Germán Oesterheld's and Francisco Solano López' El Eternauta published in Hora Cero Suplemento Semanal from issue # 1 until issue # 106.