This calendar of events represents typical school and legal holidays but is not the official calendar for Jesse M. Bethel High School in the Vallejo City Unified School District.

Please do not rely on this calendar for official school holidays, schedules or closures. Contact the school at 707-556-5700 or on their official website for further information.
February 1, 2015
Sun Mon Tue Wed Thu Fri Sat
01
First session of the U.S. Supreme Court, 1790
02
Groundhog Day
03
04
05
06
07
08
09
10
11
12
Lincoln's Birthday
13
14
Valentine's Day
15
16
President's Day
17
18
19
20
21
22
Washington's Birthday
23
24
25
26
World Trade Center bombed, 1993
27
28
Watson and Crick discover chemical structure of DNA, 1953
Congress creates Colorado Territory, 1861
Gorbachev calls for nuclear weapons treaty, 1987


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Saturday, February 28, 2015
 
Watson and Crick discover chemical structure of DNA, 1953
On this day in 1953, Cambridge University scientists James D. Watson and Frances 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. 
 
Congress creates Colorado Territory, 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 Indians 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. 
 
Gorbachev calls for nuclear weapons treaty, 1987
In a surprising announcement, Soviet leader Mikhail Gorbachev indicates that his nation is ready to sign "without delay" a treaty designed to eliminate U.S. and Soviet medium-range nuclear missiles from Europe. Gorbachev's offer led to a breakthrough in negotiations and, eventually, to the signing of the Intermediate-Range Nuclear Forces (INF) Treaty in December 1987. 
Sunday, March 1, 2015
 
Kennedy establishes Peace Corps, 1961
Newly elected President John F. Kennedy issues an executive order establishing the Peace Corps. It proved to be one of the most innovative and highly publicized Cold War programs set up by the United States. During the course of his campaign for the presidency in 1960, Kennedy floated the idea that a new "army" should be created by the United States. This force would be made up of civilians who would volunteer their time and skills to travel to underdeveloped nations to assist them in any way they could. 
 
Yellowstone Park established, 1872
President Grant signs the bill creating the nation's first national park at Yellowstone. Native Americans had lived and hunted in the region that would become Yellowstone for hundreds of years before the first Anglo explorers arrived. Abundant game and mountain streams teaming with fish attracted the Indians to the region, though the awe-inspiring geysers, canyons, and gurgling mud pots also fascinated them. John Colter, the famous mountain man, was the first Anglo to travel through the area. After journeying with Lewis and Clark to the Pacific, Colter joined a party of fur trappers to explore the wilderness. In 1807, he explored part of the Yellowstone plateau and returned with fantastic stories of steaming geysers and bubbling cauldrons. Some doubters accused the mountain man of telling tall tales and jokingly dubbed the area "Colter's Hell." 
Monday, March 2, 2015
 
Dr. Seuss born, 1904
On this day in 1904, Theodor Geisel, better known to the world as Dr. Seuss, the author and illustrator of such beloved children's books as "The Cat in the Hat" and "Green Eggs and Ham," is born in Springfield, Massachusetts. Geisel, who used his middle name (which was also his mother's maiden name) as his pen name, wrote 48 books--including some for adults--that have sold well over 200 million copies and been translated into multiple languages. Dr. Seuss books are known for their whimsical rhymes and quirky characters, which have names like the Lorax and the Sneetches and live in places like Hooterville. 
 
Congress abolishes the African slave trade, 1807
The U.S. Congress passes an act to "prohibit the importation of slaves into any port or place within the jurisdiction of the United States...from any foreign kingdom, place, or country." The first shipload of African captives to North America arrived at Jamestown, Virginia, in August 1619, but for most of the 17th century, European indentured servants were far more numerous in the North American British colonies than were African slaves. However, after 1680, the flow of indentured servants sharply declined, leading to an explosion in the African slave trade. By the middle of the 18th century, slavery could be found in all 13 colonies and was at the core of the Southern colonies' agricultural economy. By the time of the American Revolution, the English importers alone had brought some three million captive Africans to the Americas. 
 
Texas declares independence, 1836
On this day in 1861, Texas becomes the seventh state to secede from the Union when a state convention votes 166 to 8 in favor of the measure. The Texans who voted to leave the Union did so over the objections of their governor, Sam Houston. A staunch Unionist, Houston's election in 1859 as governor seemed to indicate that Texas did not share the rising secessionist sentiments of the other Southern states. 
 
Pioneer 10 launched to Jupiter, 1972
Pioneer 10, the world's first outer-planetary probe, is launched from Cape Canaveral, Florida, on a mission to Jupiter, the solar system's largest planet. In December 1973, after successfully negotiating the asteroid belt and a distance of 620 million miles, Pioneer 10 reached Jupiter and sent back to Earth the first close-up images of the spectacular gas giant. In June 1983, the NASA spacecraft left the solar system and the next day radioed back the first scientific data on interstellar space. NASA officially ended the Pioneer 10 project on March 31, 1997, with the spacecraft having traveled a distance of some six billion miles. 
 
Kennedy proposes plan to end the war, 1967
Senator Robert Kennedy (D-New York) proposes a three-point plan to help end the war. The plan included suspension of the U.S. bombing of North Vietnam and the gradual withdrawal of U.S. and North Vietnamese troops from South Vietnam with replacement by an international force. Secretary of State Dean Rusk rejected Kennedy's proposal because he believed that the North Vietnamese would never agree to withdraw their troops.