ata ▁Indians . ▁N aco ▁means ▁" n op al ▁c act us " ▁in ▁ ▁the ▁Op ata ▁language . ▁The ▁U . S . ▁Congress ▁officially ▁established ▁N aco ▁as ▁a ▁Port ▁of ▁Entry ▁on ▁June ▁ 2 8 , ▁ 1 9 0 2 . ▁Today , ▁the ▁N aco ▁port ▁of ▁entry ▁is ▁open ▁ 2 4 ▁hours ▁per ▁day . ▁ ▁Occ asion ally ▁the ▁people ▁on ▁both ▁sides ▁of ▁the ▁border ▁use ▁the ▁border ▁f ence ▁as ▁the ▁net ▁in ▁a ▁vol ley ball ▁game . ▁▁ 1 9 2 9 ▁Air ▁Ra id ▁The ▁accident al ▁ 1 9 2 9 ▁Bomb ing ▁of ▁N aco ▁by ▁Irish - American ▁mer cen ary ▁Patrick ▁Mur phy ▁is ▁notable ▁for ▁being ▁the ▁first ▁and ▁only ▁instance ▁where ▁a ▁town ▁in ▁the ▁Cont inental ▁United ▁States ▁was ▁bom bed ▁by ▁aircraft ▁working ▁for ▁a ▁foreign ▁Power . ▁The ▁ 1 9 4 2 ▁Look out ▁Air ▁Ra ids , ▁when ▁a ▁Japanese ▁float plane ▁pilot ▁made ▁two ▁un success ful ▁attempts ▁to ▁start ▁forest ▁fires ▁in ▁rural ▁Oregon , ▁and ▁the ▁ 1 9 4 4 - 4 5 ▁un mann ed ▁Fu - Go ▁Fire ▁bal lo on ▁attacks , ▁also ▁by ▁the ▁Japanese , ▁are ▁the ▁only ▁other ▁cases ▁of ▁the ▁Cont inental ▁United ▁States ▁end uring ▁aer ial ▁bomb ing ▁by ▁a ▁foreign ▁power . ▁Such ▁events ▁are ▁exception ally ▁rare ▁in ▁American ▁history ▁because ▁during ▁ 2 0 th ▁century ▁conflicts , ▁most ▁not