In response to this groundwork, the were-jaguar became the reigning linchpin of Olmec iconography. He substituted linchpin analysis for the hypotheses driving key variables. Fairfield Halls is to become the linchpin of a cultural quarter encompassing nearby College Green. Heinemann regarded the declaration as a "linchpin" in his work for the church. Altoona is the linchpin of the Tri-City Region. BCE is a chronological linchpin in the region. Heavy industry, with the machine tool industry as its linchpin, was given continuing priority. Graphic designer Brian Collins noted that Gotham was the "linchpin" to Obama's entire campaign imagery. Thematically-speaking, it was described as the "linchpin" of the entire album. She was the creator of the mutagenic virus which was the linchpin of Zod's plan. Since its inception, 111 Squadron has been a linchpin of the PN operations. The linchpin of the Winter Line position was the town and monastery of Monte Cassino. This was to become a linchpin of the Etna Line. This became the linchpin of Fischer's clock patented ten years later. The track "Linchpin" reached the Mainstream Rock Top 40.