Nichole Doub, Head Conservator, and Alice Merkel, Collections Assistant, at the Maryland Archaeological Conservation Laboratory, walk through the use of silica gel in buffered microenvironments and the process of regenerating used gel. NOTE: Sound quality is lower than normal--captions have been provided. Additional references can be found online with CCI's Technical Bulletin 33 and Steve Weintraub's "Demystifying Silica Gel." The Maryland Archaeological Conservation Laboratory (MAC Lab) standards and guidelines for preparing artifact collections and their associated records, for permanent curation at the lab can be found at https://jefpat.maryland.gov/Documents/mac-lab/technical-update-no1-collections-and-conservation-standards.pdf

The MAC Lab is a state-of-the-art archaeological research, conservation, and curation facility located at Jefferson Patterson Park and Museum, the State Museum of Archaeology. The MAC Lab serves as the primary repository for archaeological collections recovered from land-based and underwater projects conducted by state and federal agencies throughout Maryland.

This resource is part of Jefferson Patterson Park and Museum’s open educational resources project to provide history, ecology, archaeology, and conservation resources related to our 560 acre public park. JPPM is a part of the Maryland Historical Trust under the Maryland Department of Planning. If you evaluate or use this resource, please respond to this short (4 question!) survey at bit.ly/329QvZ5

This lesson prepares learners for posting marketing ad to Facebook, Instagram, and Twitter. The lesson explores the benefits of marketing on social media and how to cater to different customers based on the platform's features and functionality.

All of these children are part of U.S. child labor history, where many children were exploited by companies, working long 10-12, sometimes 16 hours shifts for as little as pennies a day. These kids were exploited until unions and federal and state labor laws protected kids. From 1870 – 1890, child labor increased three fold. 1870 was the 1st U.S. census that reported child labor statistics, and 750,000 children worked. Child labor peaked in 1900 when 18.2% of all U.S. kids under the age of 16 WORKED, often at very dangerous jobs.

This is the story of the Virgen de Guadalupe ……… the Queen of the Americas… one of the most important parts of Mexican history in the last 500 years and one of the most important historical events in all of the Americas….
whether you believe or not…. or whether it’s true or not…..
Her importance is undeniable and indisputable…
Her image can be found nearly everywhere… she is essentially a national symbol for Mexico….. Why?
Why is she so important? Who is the Virgin Guadalupe?

Here is her story…