On This Date In History
On February 28, 1953, Cambridge University scientists James D. Watson and Francis H.C. Crick announce that they have determined the double-helix structure of DNA, the molecule containing human genes.
Though DNA, short for deoxyribonucleic acid, was discovered in 1869, its crucial role in determining genetic inheritance wasn’t demonstrated until 1943. In the early 1950s, Watson and Crick were only two of many scientists working on figuring out the structure of DNA. California chemist Linus Pauling suggested an incorrect model at the beginning of 1953, prompting Watson and Crick to try and beat Pauling at his own game.
On the morning of February 28, they determined that the structure of DNA was a double-helix polymer, or a spiral of two DNA strands, each containing a long chain of monomer nucleotides, wound around each other. According to their findings, DNA replicated itself by separating into individual strands, each of which became the template for a new double helix. In his best-selling book, The Double Helix (1968), Watson later claimed that Crick announced the discovery by walking into the nearby Eagle Pub and blurting out that “we had found the secret of life.” The truth wasn’t that far off, as Watson and Crick had solved a fundamental mystery of science, how it was possible for genetic instructions to be held inside organisms and passed from generation to generation.
Watson and Crick’s solution was formally announced on April 25, 1953, following its publication in that month’s issue of Nature magazine. The article revolutionized the study of biology and medicine. Among the developments that followed directly from it were pre-natal screening for disease genes; genetically engineered foods; the ability to identify human remains; the rational design of treatments for diseases such as AIDS; and the accurate testing of physical evidence in order to convict or exonerate criminals.
Crick and Watson later had a falling-out over Watson’s book, which Crick felt misrepresented their collaboration and betrayed their friendship. A larger controversy arose over the use Watson and Crick made of research done by another DNA researcher, Rosalind Franklin, whose colleague Maurice Wilkins showed her X-ray photographic work to Watson just before he and Crick made their famous discovery. When Crick and Watson won the Nobel Prize in 1962, they shared it with Wilkins. Franklin, who died in 1958 of ovarian cancer and was thus ineligible for the award, never learned of the role her photos played in the historic scientific breakthrough.
On February 28, 1953, James Watson and Francis Crick informally announced that they had discovered the double-helical structure of DNA. They soon reported their find more formally. On April 25, 1953, they published a paper in Nature that was titled, “Molecular Structure of Nucleic Acids.” In an admirable display of understatement, they wrote, “It has not escaped our notice that the specific pairing we have postulated immediately suggests a possible copying mechanism for the genetic material.” In this image, the scientists present their DNA model at the Cavendish Laboratory.
On February 28, 1861, with the region’s population booming because of the Pike’s Peak gold rush, Congress creates the new Territory of Colorado.
When the United States acquired it after the Mexican War ended in 1848, the land that would one day become Colorado was nearly unpopulated by Anglo settlers. Ute, Arapaho, Cheyenne, and other Native Americans had occupied the land for centuries, but the Europeans who had made sporadic appearances there since the 17th century never stayed for long. It was not until 1851 that the first permanent non-Indian settlement was established, in the San Luis Valley.
As with many other western regions, though, the lure of gold launched the first major Anglo invasion. In July 1858, a band of prospectors working stream-beds near modern-day Denver found tiny flecks of gold in their pans. Since the gold-bearing streams were located in the foothills not far from the massive mountain named for the explorer Zebulon Pike, the subsequent influx of hopeful miners was termed the Pike’s Peak gold rush. By the spring of 1859, an estimated 50,000 gold seekers had reached this latest of a long series of American El Dorados.
As the first gold-bearing streams to be discovered played out, prospectors moved westward into the rugged slopes of the Rocky Mountains in search of new finds. Wherever sizable deposits were discovered, ramshackle mining camps like Central City, Nevadaville, and Black Hawk appeared, sometimes almost overnight. Meanwhile, out on the flat plains at the edge of the mountains, Denver became the central supply town for the miners.
Although few miners came to Colorado planning to stay long, they were eager to protect their property rights and gold dust. Far from the seats of eastern government, the miners and townspeople cobbled together their own simple governments, usually revolving around a miners’ court that regulated claims. Technically lacking in any genuine legal foundation, the miners’ courts did maintain the minimal order needed for the mineral exploitation of the territory to continue.
The unreliable mining operations soon gave way to larger, highly capitalized and relatively permanent lode mining operations. The pioneers recognized that the vast mineral resources of the Rockies could form the foundation of a thriving new state, but the people settling there needed a more formal system of laws and government. The Congressional designation of new western states and territories had been bogged down for several years as southern and northern politicians fought over whether slavery would be permitted in the new western regions. By 1861, the South had seceded, clearing the way for the Republican politicians to begin creating free-labor states.
Borders of the counties of Colorado Territory as they were from November 7, 1861, to February 24, 1863.
On February 28, 1993, at Mount Carmel in Waco, Texas, agents of the U.S. Treasury Department’s Bureau of Alcohol, Tobacco, and Firearms (ATF) launch a raid against the Branch Davidian compound as part of an investigation into illegal possession of firearms and explosives by the religious cult.
As the agents attempted to penetrate the complex, gunfire erupted, beginning an extended gun battle that left four ATF agents dead and 15 wounded. Six Branch Davidians were fatally wounded, and several more were injured, including David Koresh, the cult’s founder and leader. After 45 minutes of shooting, the ATF agents withdrew, and a cease-fire was negotiated over the telephone. The operation, which involved more than 100 ATF agents, was the one of the largest ever mounted by the bureau and resulted in the highest casualties of any ATF operation.
David Koresh was born Vernon Wayne Howell in Houston, Texas, in 1959. In 1981, he joined the Branch Davidians, a sect of the Seventh Day Adventist Church founded in 1934 by a Bulgarian immigrant named Victor Houteff. Koresh, who possessed an exhaustive knowledge of the Bible, rapidly rose in the hierarchy of the small religious community, eventually entering into a power struggle with the Davidians’ leader, George Roden.
For a short time, Koresh retreated with his followers to eastern Texas, but in late 1987 he returned to Mount Carmel with seven armed followers and raided the compound, severely wounding Roden. Koresh went on trial for attempted murder, but the charge was dropped after his case was declared a mistrial. By 1990, he was the leader of the Branch Davidians and legally changed his name to David Koresh, with David representing his status as head of the biblical House of David, and Koresh standing for the Hebrew name for Cyrus, the Persian king who allowed the Jews held captive in Babylon to return to Israel.
Koresh took several wives at Mount Carmel and fathered at least 12 children from these women, several of whom were as young as 12 or 13 when they became pregnant. There is also evidence that Koresh may have harshly disciplined some of the 100 or so Branch Davidians living inside the compound, particularly his children. A central aspect of Koresh’s religious teachings was his assertion that the apocalyptic events predicted in the Bible’s book of Revelation were imminent, making it necessary, he asserted, for the Davidians to stockpile weapons and explosives in preparation.
Following the unsuccessful ATF raid, the Federal Bureau of Investigation (FBI) took over the situation. A standoff with the Branch Davidians stretched into seven weeks, and little progress was made in the telephone negotiations as the Davidians had stockpiled years of food and other necessities before the raid.
On April 18, U.S. Attorney General Janet Reno approved a tear-gas assault on the compound, and at approximately 6:00 a.m. on April 19 the Branch Davidians were informed of the imminent attack and asked to surrender, which they did not. A few minutes later, two FBI combat vehicles began inserting gas into the building and were joined by Bradley tanks, which fired tear-gas canisters through the compound’s windows. The Branch Davidians, many with gas masks on, refused to evacuate, and by 11:40 a.m. the last of some 100 tear-gas canisters was fired into the compound. Just after noon, a fire erupted at one or more locations on the compound, and minutes later nine Davidians fled the rapidly spreading blaze. Gunfire was reported but ceased as the compound was completely engulfed by the flames.
Koresh and at least 80 of his followers, including 22 children, died during the federal government’s second disastrous assault on Mount Carmel. The FBI and Justice Department maintained there was conclusive evidence that the Branch Davidian members ignited the fire, citing an eyewitness account and various forensic data. Of the gunfire reported during the fire, the government argued that the Davidians were either killing each other as part of a suicide pact or were killing dissenters who attempted to escape the Koresh-ordered suicide by fire. Most of the surviving Branch Davidians contested this official position, as do some critics in the press and elsewhere, whose charges against the ATF and FBI’s handling of the Waco standoff ranged from incompetence to premeditated murder.
Vernon Wayne Howell aka David Koresh
U.S. Attorney General Janet Reno
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