Where can I find maps on the diffusion of diseases in the time period 1450-1750? I need diffusion maps on Syphilis and Hepatitis from Americas to Europe, Syphilis from Europe to Africa, and Malaria and Yellow Fever from Africa to Americas.

Also, I need info on the population decline in New Span in 1520 & 1600.

Please provide me handy sources to use if necessary. Thank you again!

You are searching for information that is so specific that you have to be prepared for the possibility that none of it may be online. Or some may be, and some may not. In addition to searching on the Internet, you also need to make best friends with the reference librarian(s) in your local or college library.

http://www.sou.edu/library/searchtools/
At this webpage, you can go immediately to the search sites (first three columns across the top) -- or even better you can scroll down until you see the section called HOW TO SEARCH THE INTERNET. Those are the links to start with. You'll not only learn how to come up with good search terms, but also how to evaluate the webpages you get as results. Some will be good and others will be garbage. You need to know how to tell the difference.

My favorite way to search is to go to Google's advanced search page http://www.google.com/advanced_search?hl=en and put my search words or phrases into the first or second search box (either "all the words" or "exact phrase"). However, there many other strategies for searching you can use, and the HOW TO SEARCH THE INTERNET section will help you best.

Learning to use Google or other search engines can save you time and help you learn to find information efficiently. Here are some websites that can teach you how:

http://www.lib.berkeley.edu/TeachingLib/Guides/Internet/FindInfo.html

http://www.sou.edu/library/searchtools/searchtips.html

http://www.pandia.com/goalgetter/index.html

http://websearch.about.com/mbody.htm?once=true&COB=home&PM=112_100_T

... and one to help you judge whether a particular website's information is worth your time:

http://www.sou.edu/library/searchtools/evaluate.html

Happy searching.

=)

If you need help learning how to search, including how to choose good search terms, go here and scroll down to the links under HOW TO SEARCH THE INTERNET:
http://hanlib.sou.edu/searchtools/

=)

To find maps on the diffusion of diseases in the time period 1450-1750, including Syphilis, Hepatitis, Malaria, and Yellow Fever, you can follow these steps:

1. Start by searching for academic databases or relevant websites that specialize in historical maps and disease diffusion studies. Some suggestions for sources include:
- The World Digital Library: It offers a wide range of historical materials, including maps, manuscripts, and books. (https://www.wdl.org/)
- The David Rumsey Map Collection: It is an extensive online collection of historical maps. (https://www.davidrumsey.com/)
- The British Library: They have a collection of digitized maps and documents related to global history. (https://www.bl.uk/)
- The University of Texas at Austin Perry-Castañeda Library Map Collection: It provides access to a large collection of historical maps covering various regions and time periods. (https://legacy.lib.utexas.edu/maps/historical/index.html)

2. Once you access these databases or websites, use their search functions to look for maps specifically related to disease diffusion in the time period 1450-1750. Try using keywords such as "disease diffusion," "epidemics," "disease migration," or the specific names of the diseases you mentioned (e.g., Syphilis, Hepatitis, Malaria, Yellow Fever).

3. Refine your search by specifying the regions or continents you are interested in. For example, search for maps showing the diffusion of Syphilis and Hepatitis from Americas to Europe, Syphilis from Europe to Africa, and Malaria and Yellow Fever from Africa to Americas.

4. Once you find relevant maps, carefully examine them to ensure they cover the desired time period (1450-1750) and illustrate the specific disease diffusion patterns you are looking for. Make sure to read any accompanying descriptions or annotations that provide additional context.

For information on the population decline in New Spain in 1520 and 1600, you can try the following steps:

1. Consult historical sources such as books, articles, or academic papers that focus on the population history of New Spain (now Mexico) during the 16th and 17th centuries. Look for reliable sources written by historians or scholars who specialize in this area.

2. Utilize academic databases to search for relevant articles or books. Some reputable databases include:
- JSTOR (www.jstor.org)
- Google Scholar (scholar.google.com)

3. In these databases, use keywords such as "population decline," "demographic changes," "New Spain," "Mexico," "16th century," "17th century," etc., to narrow down your search and find sources that specifically discuss the population decline in New Spain during the desired time periods (1520 and 1600).

4. Carefully evaluate the sources you find to ensure they are reputable and provide reliable information. Look for articles or books written by reputable historians who have conducted thorough research and provide appropriate citations and references.

Remember, always critically assess the sources you find to ensure their reliability before using the information for any research or academic purposes.