11. Expansion of railroads to 1860 Publication/Creation: [S.l.] : Maps.com, c2000 Resource Type: Map Access & Availability: Loading
12. Eurasia and the Silk Roads, 100BCE Publication/Creation: [S.l.] : Maps.com, c2000 Resource Type: Map Access & Availability: Loading
13. Industrialization and urbanization in Europe, c. 1850 Publication/Creation: [S.l.] : Maps.com, c1999 Resource Type: Map Access & Availability: Loading
14. U.S. population change, 1950-1970 Publication/Creation: [S.l.] : Maps.com, c1999 Resource Type: Map Access & Availability: Loading
15. French, Spanish, and English settlements to 1776 Publication/Creation: [S.l.] : Maps.com, c1999 Resource Type: Map Access & Availability: Loading
16. Settlement by ethnic group, 1755 Publication/Creation: [S.l.] : Maps.com, c1999 Resource Type: Map Access & Availability: Loading
17. U.S. population change, 1970-1980 Publication/Creation: [S.l.] : Maps.com, c1999 Resource Type: Map Access & Availability: Loading
18. Trade routes in the Indian Ocean, c. 500-1000 CE Publication/Creation: [S.l.] : Maps.com, c1999 Resource Type: Map Access & Availability: Loading
19. U.S. population change, 1980-1994 Publication/Creation: [S.l.] : Maps.com, c1999 Resource Type: Map Access & Availability: Loading
20. Atlas sociodemografico de Colombia Publication/Creation: Santa Fé de Bogotá : Departamento Administrativo Nacional de Estadística, 1998 Resource Type: Map Access & Availability: Loading