Boart Longyear wireline core retrieval system, an innovation that revolutionized the diamond drilling industry by increasing productivity on the worksite and making tripping core from the bottom of the hole safer for the drilling assistant. Later named the Q Wireline System, the new core retrieval method introduced a level of productivity never before seen in the exploration drilling industry. In 1964 Longyear sold 25 percent of its family-owned stock to FACTS, a Luxembourg-based holding company owned jointly by Boart International and Christensen Diamond Products Company. Three years later FACTS exercised its option to purchase another 25 percent of Longyear's family stock. The
Solid Waste Disposal Act of 1965 and Solid Waste Amendment (HSWA). After the industrial revolution lead to increases in municipal waste, local and regional governments and private individuals developed many diverse, and frequently unsafe or unsanitary, disposal technologies for disposal of this waste. The most frequent disposal method used was open dumps and burning of trash. As the Germ Theory of Disease developed in the late 19th and early 20th century, this led to increased attention of waste disposal as a public health crisis in the United States. Due to increasing demand for better waste management during the 1960s, the United States passed SWDA in 1965.