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Archaeologists call this kind of behavior "curation" -- people then, just like today, like to hang on to old things.But you would never have any 78s in junkyards closed before they were invented.Next, we break apart the bars and align them so that all of the same colored bars are positioned vertically next to the others.

He assumed that the change in styles was an evolutionary one, and, if you could quantify that change, he surmised it might be used to indicate which cemeteries were older than others.

Petrie's notions about Egyptology, and archaeology in general, were revolutionary.

We count the types of musical recording methods found in each of our junkyard samples, and then work out the percentages.

Of all the music recording artifacts in our sample from Junkyard E, 10% are related to 45 rpm technology; 20% to 8-tracks; 60% are related to cassette tapes and 10% are CD-Rom parts.

The seriation method works because object styles change over time; they always have and always will.

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