Wanne daga cikin wadannan ba ƙasa ba ce: Amurka, Ƙungiyar Falsafa ta Amirka, ko Ingila? Bisa ga tambayar da ta gabata, ka rubuta mahallin da ke ɗauke da amsar. Zai iya zama jumla 1 - 20. Abubuwan da ke ciki:
Taswirar farko na ilimin ƙasa na Amurka William Maclure ne ya samar da shi a 1809. A cikin 1807, Maclure ya fara aikin da ya sanya kansa na yin binciken ilimin ƙasa na Amurka. Kusan kowace jiha a cikin Union ya haye kuma ya zana taswirar ta, Dutsen Allegheny da aka haye kuma ya sake wucewa sau 50. Sakamakon aikinsa ba tare da taimako ba an gabatar da shi ga American Philosophical Society a cikin wani tarihin da ake kira Observations on the Geology of the United States mai bayanin Taswirar Geological, kuma an buga shi a cikin Ma'amaloli na Society, tare da taswirar geological na farko na al'umma. Wannan ya riga William Smith taswirar geological na Ingila da shekaru shida, ko da yake an gina shi ta amfani da rarrabuwa daban-daban na duwatsu.