Canada 18 dating
Canada 18 dating - standard deviation radiocarbon dating
The author created this website as a BLM employee and continues to update and enhance the site in retirement as a volunteer.This website now has a permanent home courtesy of the Society for Historical Archaeology (SHA). This entire website is essentially a "key" - albeit a complex one - to the dating and typing (typology) of historic bottles.
These pages lead a user through a series of questions about the physical - or morphological - characteristics of historic bottles which help to narrow down the age of an item.When possible, the information on this website is given general reliability rating estimates (e.g., high, moderate, low or "usually", "occasionally", "almost always", "almost never") to allow a user some "feel" for the probable accuracy of their conclusion or determination.In addition, there are a hundreds of dating and/or typing determination examples scattered throughout virtually every site page to give the user a feel for the processes involved in dating and/or typing a bottle.However, some Canadian-made bottles mirrored English manufacturing techniques/timeframes and many English stylistic trends (particularly for liquor, soda, and beer bottles) which differed somewhat from typical U. items - though many Canadian bottles also mirrored U. At Elite Singles, our passion is helping compatible singles to connect via online dating.It also includes "Bottle Dating Worksheets" (pages 51 to 55) by Rebecca Allen and this author to assist in the systematic dating of an historic bottle based on the information in that dating key as well as other information on the website.
In part, this book fulfills this authors long time desire to have a hard copy "field guide" version of this website for use by archaeologists (and others) by having at least the dating portions available in printed form to take to the field.
This site instead attempts to help the user determine some key facts - approximate age & function - about any given utilitarian* bottle/jar based on observable physical characteristics.
Hundreds of specific historic bottles are used as examples within the pages of this website to illustrate the concepts discussed; with luck you may find the specific bottle you have an interest in discussed though typically you will not.
Since there were hundreds of thousands of uniquely different bottles produced in the United States (and Canada**) between the late 18th century and the 1950s (Fike 1987), it is beyond the scope or even possibility of this site (or website or book) to provide specific details about more than just a tiny fraction of a percent of that variety of bottles.
Even then the bottles discussed in depth are so primarily to illustrate the presented information and concepts.
Beyond that the book includes more information about historic bottle identification (typology), bottle production, and more than can be summarized here.