Complex sentence: The term amalgamation was derived from metallurgy (see amalgam), and has been linked to the metaphor of the melting pot, which also originated in the US, and which describes the cultural assimilation and intermarriage of different ethnicities.
Split into simpler sentences: The term amalgamation was derived from metallurgy (see amalgam). It has been linked to the metaphor of the melting pot, which also originated in the US, and which described the cultural assimilation and intermarriage of different ethnicities.