Wednesday, March 18, 2020

The Night of Sorrows

The Night of Sorrows On the night of June 30 - July 1, 1520, the Spanish conquistadors occupying Tenochtitlan decided to escape from the city, as they had been under heavy attack for several days. The Spanish tried to escape under cover of darkness, but they were spotted by locals, who rallied the Mexica warriors to attack. Although some of the Spaniards escaped, including expedition leader Hernan Cortes, many were slain by the angry natives, and many of the golden treasures of Montezuma were lost. The Spanish referred to the escape as La Noche Triste, or the Night of Sorrows.  Ã¢â‚¬â€¹ The Conquest of the Aztecs In 1519, conquistador Hernan Cortes landed near present-day Veracruz with about 600 men and began slowly making his way to the magnificent capital city of the Mexica (Aztec) Empire, Tenochtitlan. On his way into the Mexican heartland, Cortes learned that the Mexica controlled many vassal states, most of which were unhappy about the Mexicas tyrannical rule. Cortes also first defeated, then befriended the warlike Tlaxcalans, who would provide invaluable assistance in his conquest. On November 8, 1519, Cortes and his men entered Tenochtitlan. Before long, they took Emperor Montezuma captive, resulting in a tense stand-off with the remaining native leaders who wanted the Spaniards out. The Battle of Cempoala and the Toxcatl Massacre In early 1520, Cortes had a fairly firm hold on the city. Emperor Montezuma had proved a pliant captive and a combination of terror and indecision paralyzed other native leaders. In May, however, Cortes was forced to assemble as many soldiers as he could and leave Tenochtitlan. Governor Diego Velazquez of Cuba, wishing to reassert control over Cortes expedition, had sent a massive conquistador army under Panfilo de Narvaez to rein in Cortes. The two conquistador armies met at the Battle of Cempoala on May 28 and Cortes emerged victorious, adding Narvaez men to his own. Meanwhile, back in Tenochtitlan, Cortes had left his lieutenant Pedro de Alvarado in charge of about 160 Spanish reserves. Hearing rumors that the Mexica planned to slaughter them at the Festival of Toxcatl, Alvarado decided on a pre-emptive strike. On May 20, he ordered his men to attack the unarmed Aztec nobles assembled at the festival. Heavily armed Spanish conquistadors and their fierce Tlaxcalan allies waded into the unarmed mass, killing thousands. Needless to say, the people of Tenochtitlan were enraged by the Temple Massacre. When Cortes returned to the city on June 24, he found Alvarado and the surviving Spaniards and Tlaxcalans barricaded in the Palace of Axaycatl. Although Cortes and his men were able to join them, the city was up in arms.   The Death of Montezuma By this point, the people of Tenochtitlan had lost their respect for their Emperor, Montezuma, who had repeatedly refused to take up arms against the hated Spanish. On June 26 or 27, the Spanish dragged a reluctant Montezuma to the rooftop to appeal to his people for peace. This tactic had worked before, but now his people were having none of it. The assembled Mexica egged on by new, warlike leaders including Cuitlhuc (who would succeed Montezuma as Tlatoani, or Emperor), only jeered Montezuma before launching stones and arrows at him and the Spanish on the roof. The Europeans brought Montezuma inside, but he had been mortally wounded. He died shortly thereafter, on June 29 or 30. Preparations for Departure With Montezuma dead, the city in arms and able military leaders like Cuitlhuac clamoring for the annihilation of all of the invaders, Cortes and his captains decided to abandon the city. They knew the Mexica did not like to fight at night, so they decided to leave at midnight on the night of June 30-July 1. Cortes decided that they would leave via the Tacuba causeway to the west, and he organized the retreat. He put his best 200 men in the vanguard so that they could clear the way. He also put important noncombatants there: his interpreter Doà ±a Marina (Malinche) was guarded personally by some of Cortes best soldiers. Following the vanguard would be Cortes with the main force. They were followed by the surviving Tlaxcalan warriors with some important prisoners, including three children of Montezuma. After that, the rearguard and cavalry would be commanded by Juan Velazquez de Leà ³n and Pedro de Alvarado, two of Cortes most reliable battlefield captains. The Night of Sorrows The Spanish made it a fair way onto the Tacuba causeway before they were seen by a local woman who raised the alarm. Before long, thousands of enraged Mexica warriors were attacking the Spanish on the causeway and from their war canoes. The Spanish fought valiantly, but the scene soon deteriorated into chaos. The vanguard and Cortes main body of troops reached the western shores fairly intact, but the back half of the escape column was nearly wiped out by the Mexica. The Tlaxcalan warriors suffered great losses, as did the rearguard. Many local leaders who had allied themselves with the Spanish were killed, including Xiuhtototzin, governor of Teotihuacn. Two of Montezumas three children were killed, including his son Chimalpopoca. Juan Velazquez de Leà ³n was killed, reportedly shot full of native arrows. There were several gaps in the Tacuba causeway, and these were difficult for the Spanish to cross. The largest gap was called the Toltec Canal. So many Spaniards, Tlaxcalans, and horses died at the Toltec Canal that their dead bodies formed a bridge over the water over which others could cross. At one point, Pedro de Alvarado allegedly made a tremendous leap over one of the gaps in the causeway: this place became known as Alvarados Leap even though it likely never happened. Some Spanish soldiers close to the rearguard decided to retreat back to the city and re-occupy the fortified Palace of Axaycatl. They may have been joined there by as many as 270 conquistadors there, veterans of the Narvaez expedition, who had apparently never been told of the plans to leave that night. These Spanish held out for a couple of days before being overrun: all were killed in battle or sacrificed shortly thereafter. The Treasure of Montezuma The Spanish had been collecting wealth since long before the Night of Sorrows. They had plundered towns and cities on their way to Tenochtitlan, Montezuma had given them extravagant gifts and once they reached the capital city of the Mexica, they had looted it mercilessly. One estimate of their loot was a staggering eight tons of gold, silver, and jewels at the time of the Night of Sorrows. Before they left, Cortes had ordered the treasure melted down into portable gold bars. After he had secured the Kings fifth and his own fifth onto some horses and Tlaxcalan porters, he told the men to take whatever they wanted to carry with them as they fled the city. Many greedy conquistadors loaded themselves down with heavy gold bars, but some of the smarter ones did not. Veteran Bernal Diaz del Castillo carried only a small handful of gemstones which he knew were easy to barter with natives. The gold was put in the care of Alonso de Escobar, one of the men Cortes trusted most. In the confusion of the Night of Sorrows, many of the men abandoned their gold bars when they became a needless weight. Those who had loaded themselves with too much gold were more likely to perish in battle, drown in the lake, or be captured. Escobar disappeared in the confusion, presumably killed or captured, and thousands of pounds of Aztec gold disappeared with him. All in all, most of the loot the Spanish had captured thus far disappeared that night, down into the depths of Lake Texcoco or back into the hands of the Mexica. When the Spanish recaptured Tenochtitlan several months later, they would try in vain to locate this lost treasure. Legacy of the Night of Sorrows All in all, some 600 Spanish conquistadors and about 4,000 Tlaxcalan warriors were killed or captured on what the Spanish came to call La Noche Triste, or the Night of Sorrows. All of the captive Spaniards were sacrificed to the Aztecs gods. The Spaniards lost a great many important things, such as their cannons, most of their gunpowder, any food they still had and, of course, the treasure. The Mexica rejoiced in their victory but made a huge tactical error in not pursuing the Spanish immediately. Instead, the invaders were allowed to retreat to Tlaxcala and regroup there before beginning another assault on the city, which would fall in a matter of months, this time for good. Tradition has it that after his defeat, Cortes wept and regrouped beneath an enormous Ahuehuete tree in Tacuba Plaza. This tree stood for centuries and became known as el rbol de la noche triste or the tree of the Night of Sorrows. Many modern Mexicans favor a native-centric view of the conquest: that is to say, they see the Mexica as brave defenders of their homeland and the Spanish as unwelcome invaders. One manifestation of this is a movement in 2010 to change the name of the plaza, which is called Plaza of the Tree of the Night of Sorrows to Plaza of the Tree of the Night of Victory. The movement did not succeed, perhaps because there is not much left of the tree nowadays. Sources Diaz del Castillo, Bernal. Trans., ed. J.M. Cohen. 1576. London, Penguin Books, 1963. Print.Levy, Buddy. Conquistador: Hernan Cortes, King Montezuma and the Last Stand of the Aztecs. New York: Bantam, 2008.Thomas, Hugh. Conquest: Montezuma, Cortes and the Fall of Old Mexico. New York: Touchstone, 1993.

Sunday, March 1, 2020

Dung Beetles and Tumblebugs, Subfamily Scarabaeinae

Dung Beetles and Tumblebugs, Subfamily Scarabaeinae Where would we be without dung beetles? We’d likely be buried hip deep in poop, that’s where. Dung beetles do the dirty work in our world by breaking down, burying, and consuming animal waste. True dung beetles and tumblebugs belong to the subfamily Scarabaeinae (sometimes called Coprinae). Description: The subfamily Scarabaeinae is a large insect group, so there’s quite a bit of variety in the size, color, and shape of dung beetles. Most dung beetles and tumblebugs are black, but a few more flamboyant species come in brilliant shades of green or gold. Dung beetles vary in size from about 5mm to 30mm long. Just below the frons (forehead), the dung beetle’s exoskeleton forms a rounded shield-like structure called a clypeus, which covers the mouthparts. Some male dung beetles possess impressive horns, which they use as weapons to fend off other male competitors. Even a novice observer can recognize a dung beetle by its behavior. As if by magic, dung beetles appear on fresh dung piles, and quickly begin tearing the patty apart. A single pile of elephant scat attracted 16,000 dung beetles, with 4,000 scatophiles already at work in the first 15 minutes after the poo was deposited on the ground. If you want to see a dung beetle, find yourself a fresh cow patty to observe. Dung beetles play important roles in the ecosystems in which they live. Gardeners would pay good money to have someone work manure into their soil, but dung beetles provide that service for free. As they roll their balls of poo away, they disperse seeds that passed through the digestive tract of the herbivore and wound up in its scat. Dung beetles and tumblebugs recycle nutrients and help plants thrive. And don’t forget, all those piles of poop attract other, nuisance insects, like filth flies. When dung beetles clean up quickly, they prevent many disease-carrying pests from breeding. Classification: Kingdom - AnimaliaPhylum - ArthropodaClass - InsectaOrder - ColeopteraFamily - ScarabaeidaeSubfamily - Scarabaeinae Diet: Dung beetles feed primarily on dung, especially of herbivorous mammals, although some beetles in this group feed on carrion, fungi, or even rotting fruit. Dung beetle adults typically derive their nutrition from the liquid component of excrement, and can filter out any solid particles as they ingest it. As the dung dries out, it becomes less palatable to the beetles and they will search for a fresher source of food. Parent dung beetles provision their young with dung balls, so the developing offspring have a ready source of food when they emerge from their eggs. Dung beetle larvae can digest the drier, fiber-rich part of the dung, and use chewing mouthparts to consume it. Life Cycle: Like all beetles, dung beetles undergo a complete metamorphosis with four life stages: egg, larva, pupa, and adult. The mother dung beetle deposits her eggs in dung balls, which the parents skillfully bury or roll into underground tunnels. Each egg is placed in its own chamber, and will hatch within a couple of weeks. In general, dung beetle larvae will feed for about 3 months, molting through three instars before pupating inside their dung chambers. The adult will emerge from its brood mass in 1-4 weeks, and then dig its way to the soil surface. Special Behaviors: The dung beetle makes its living on piles of poop, but that doesn’t mean it’s an easy life. That scat is a veritable free-for-all of dung beetles trying to grab the nicest hunk and run. A sneaky dung beetle might lie in wait for a more ambitious beetle to do the work of rolling a nice, neat dung ball, and then dash in and steal it. It’s in the dung beetle’s best interest to retreat quickly with its poo prize, and that means it needs to roll the ball in a straight path. Should the beetle inadvertently push its dung ball in a curve, it risks winding up back in the melee, where a beetle bully can cause trouble. It’s no easy task to roll a ball of poo in a straight line, especially when you do so by pushing it from behind with your back legs, and your head down. Researchers studying dung beetles in Africa have recently shown that the beetles look to the heavens for navigational clues. The sun, moon, and even the gradual gradient of light that we call the Milky Way can help the dung beetle maintain a straight line. And each time a dung beetle encounters an obstacle – a rock, a depression in the soil, or perhaps a clump of grass – it climbs atop its dung ball, and does a little orientation dance until it figures out which way to go. Range and Distribution: Dung beetles are both abundant and diverse, with roughly 6,000 species in over 250 genera known so far. Dung beetles live on every continent except Antarctica. Sources: Ecology and Evolution of Dung Beetles, edited by Leigh W. Simmons and T. James Ridsdill-Smith.Borror and DeLong’s Introduction to the Study of Insects, 7th edition, by Charles A. Triplehorn and Norman F. Johnson.Encyclopedia of Insects, 2nd edition, edited by Vincent H. Resh and Ring T. Carde.Insects: Their Natural History and Diversity, by Stephen A. Marshall.Scarabaeinae Overview, Generic Guide to New World Scarab Beetles website. Accessed May 8, 2013.