▁medieval ▁rev iv als , ▁mic ron ations ▁and ▁other ▁related ▁projects . ▁Modern ▁arm ig ers ▁use ▁her ald ry ▁to ▁express ▁ancest ral ▁and ▁personal ▁her itage ▁as ▁well ▁as ▁professional , ▁academic , ▁civ ic , ▁and ▁national ▁pride . ▁Little ▁is ▁left ▁of ▁class ▁identification ▁in ▁modern ▁her ald ry , ▁where ▁the ▁emphas is ▁is ▁more ▁than ▁ever ▁on ▁expression ▁of ▁identity . ▁ ▁Her ald ry ▁continues ▁to ▁build ▁on ▁its ▁rich ▁tradition ▁in ▁academ ia , ▁government , ▁gu ild s ▁and ▁professional ▁associations , ▁religious ▁institutions , ▁and ▁the ▁military . ▁Nations ▁and ▁their ▁sub div isions ▁– ▁provinces , ▁states , ▁count ies , ▁cities , ▁etc . ▁– ▁continue ▁to ▁build ▁on ▁the ▁trad itions ▁of ▁civ ic ▁her ald ry . ▁The ▁Roman ▁Catholic ▁Church , ▁Ang lic an ▁churches , ▁and ▁other ▁religious ▁institutions ▁maintain ▁the ▁trad itions ▁of ▁ecc les iast ical ▁her ald ry ▁for ▁cler gy , ▁religious ▁orders , ▁and ▁schools . ▁ ▁Many ▁of ▁these ▁institutions ▁have ▁begun ▁to ▁employ ▁bla z ons ▁representing ▁modern ▁objects ▁unknown ▁in ▁the ▁medieval ▁world . ▁For ▁example , ▁some ▁her ald ic ▁symbols ▁issued ▁by ▁the ▁United ▁States ▁Army ▁Institute ▁of ▁Her ald ry ▁incorpor ate ▁symbols ▁such ▁as ▁guns , ▁air plan es , ▁or ▁locomot ives . ▁Some ▁scientific ▁institutions ▁incorpor ate ▁symbols ▁of ▁modern ▁science ▁such ▁as ▁the ▁atom ▁or ▁particular ▁scientific ▁instruments . ▁The ▁arms ▁of ▁the ▁United ▁Kingdom ▁At omic ▁Energy ▁Author ity ▁uses