How can grave goods be useful for dating, understanding ritual, or identifying gender, ethnicity, social status, occupation, and connections with the outside world?

In many ancient societies, people include grave goods as part of their burial practice. Can we reconstruct the society of the living from these? How can grave goods be useful for dating, understanding ritual, or identifying gender, ethnicity, social status, occupation, and connections with the outside world? Enliven your answer with specific examples. Looking to produce 3 examples of burials with grave goods that have been documented in the UK and Northern Europe such as the Vikings. Please use Harvard referencing (with page numbers), for the bibliography can use any source for the essay