Leave it to me to think reading Heather's comment: What about people's last names? If anything is a multi generational tie back to the days of Slavery and in specific; ownership of other people, it's the last names we see pervading our American society. Remove the names on the schools and yet, people still have their last names. Is there any we're going to escape our shitty past or do those last names give us hope for what people can become in America?
Fucking hell, our past isn't even that shitty. Certainly far from perfect, the U.S. grew up as a child of trauma and has the mental scars as a society to prove that we are still working out, but humanity as a whole is pretty nasty. Relative to the Vikings, Aztecs, Romans, or Spaniards, we did pretty good all things told. For your further entertainment, here is a list of Aztec Holidays with their god of that holiday and type of sacrifice.
I Atlacacauallo (from February 2 to February 21) Tláloc, Chalchitlicue, Ehécatl Sacrifice of children and captives to the water deities
II Tlacaxipehualiztli (from February 22 to March 13) Xipe Tótec, Huitzilopochtli, Tequitzin-Mayáhuel Sacrifice of captives; gladiatorial fighters; dances of the priest wearing the skin of the flayed victims
III Tozoztontli (from March 14 to April 2) Coatlicue, Tlaloc, Chalchitlicue, Tona Type of sacrifice: extraction of the heart; burying of the flayed human skins; sacrifices of children
IV Hueytozoztli (from April 3 to April 22) Cintéotl, Chicomecacóatl, Tlaloc, Quetzalcoatl Sacrifice of a maid; of boy and girl
V Toxcatl (from April 23 to May 12) Tezcatlipoca, Huitzilopochtli, Tlacahuepan, Cuexcotzin Sacrifice of captives by extraction of the heart
VI Etzalcualiztli (from May 13 to June 1) Tláloc, Quetzalcoatl Sacrifice by drowning and extraction of the heart
VII Tecuilhuitontli (from June 2 to June 21) Huixtocihuatl, Xochipilli Sacrifice by extraction of the heart
VIII Hueytecuihutli (from June 22 to July 11) Xilonen, Quilaztli-Cihacóatl, Ehécatl, Chicomelcóatl Sacrifice of a decapitated woman and extraction of her heart
IX Tlaxochimaco (from July 12 to July 31) Huitzilopochtli, Tezcatlipoca, Mictlantecuhtli Sacrifice by starvation in a cave or temple
X Xocotlhuetzin (from August 1 to August 20) Xiuhtecuhtli, Ixcozauhqui, Otontecuhtli, Chiconquiáhitl, Cuahtlaxayauh, Coyolintáhuatl, Chalmecacíhuatl Sacrifices to the fire gods by burning the victims
XI Ochpaniztli (from August 21 to September 9) Toci, Teteoinan, Chimelcóatl-Chalchiuhcíhuatl, Atlatonin, Atlauhaco, Chiconquiáuitl, Cintéotl Sacrifice of a decapitated young woman to Toci; she was skinned and a young man wore her skin; sacrifice of captives by hurling from a height and extraction of the heart
XII Teoleco (from September 10 to September 29) Xochiquétzal Sacrifices by fire; extraction of the heart
XIII Tepeihuitl (from September 30 to October 19) Tláloc-Napatecuhtli, Matlalcueye, Xochitécatl, Mayáhuel, Milnáhuatl, Napatecuhtli, Chicomecóatl, Xochiquétzal Sacrifices of children, two noble women, extraction of the heart and flaying; ritual cannibalism
XIV Quecholli (from October 20 to November 8) Mixcóatl-Tlamatzincatl, Coatlicue, Izquitécatl, Yoztlamiyáhual, Huitznahuas Sacrifice by bludgeoning, decapitation and extraction of the heart
XV Panquetzaliztli (from November 9 to November 28) Huitzilopochtli Massive sacrifices of captives and slaves by extraction of the heart
XVI Atemoztli (from November 29 to December 18) Tlaloques Sacrifices of children and slaves by decapitation
XVII Tititl (from December 19 to January 7) Tona-Cozcamiauh, Ilamatecuhtli, Yacatecuhtli, Huitzilncuátec Sacrifice of a woman by extraction of the heart and decapitation afterwards
XVIII Izcalli (from January 8 to January 27) Ixozauhqui-Xiuhtecuhtli, Cihuatontli, Nancotlaceuhqui Sacrifices of victims representing Xiuhtecuhtli and their women (each four years), and captives; hour: night; New Fire
Nemontemi (from January 28 to February 1) Five ominous days at the end of the year, no ritual, general fasting