adding a Mexico (1810-21) relation for context for Newberry import

adding a Natural Earth Mexico for context for Newberry import

importing Texas (1845-50) as part of Newberry import

importing first version of Texas (1850-) as part of Newberry import // needs subsequent versions

importing Kansas Territory (1854-61) and first version of Kansas (1861-) as part of Newberry import // needs subsequent versions

importing first version of Nebraska (1867-) as part of Newberry import // needs subsequent versions

importing Nebraska Territory (1863-67) as part of Newberry import

importing Nebraska Territory (1861-63) as part of Newberry import

importing Nebraska Territory (1862-61) as part of Newberry import

importing Nebraska Territory (1854-61) as part of Newberry import + some way QA

Missouri Territory will be the death of me... Newberry

nudging labels, I'm forever nudging labels (& fixing some dates...)

adding labels to some existing state relations

adding labels to some existing state relations

adding labels to some existing state relations

Importing Colorado Territory (1861-76) and Colorado (1876-) as part of Newberry import

many pre-1819 Missouri Territory & post-Louisiana Purchase fixes as part of Newberry import

importing Missouri Territory (1812-18) as part of Newberry import

Importing Territory of Orleans (1804-1810)

Importing Territory of Orleans (1804-1810)