Recent research shows that ancient Greeks used a primitive type of lifting machine to move heavy stones before they began using cranes 2,500 years ago.

It is commonly believed that the foremost discovery of the ancient Greeks in building technology is the crane. Yet, enormous stone structures were known to have been built in Greece at least 150 years before the use of cranes themselves.

Cranes first appeared in the late sixth century BC, according to research published in the Annual of the British School at Athens, but their mechanical forerunners were used in buildings such as the Temples of Isthmia and Corinth at least 150 years before that, around the middle of the seventh century BC.

The researchers say that ancient Greeks were likely to have first used ramps made of earth or mudbrick to lift the heavy stone blocks used in major construction. The lifting devices are thought to have been similar to the ones used by ancient Egyptians and Assyrians centuries earlier.

The precursor of the crane lifting machine

The paper, written by Alessandro Pierattini, an assistant professor of architecture at the University of Notre Dame, argues that a kind of lifting machine used by the ancient Greeks was the next precursor to the crane, one which was capable of lifting ashlar blocks weighing over 200 to 400 kilograms (440 to 880 pounds).

The lifting machine was originally invented by the Corinthians, who used it to build ships and for lowering heavy sarcophagi into narrow, deep burial pits. It was not a crane, since it did not use winches or hoists. Instead, the builders redirected the force of the weight by using a rope passed over a frame.

“This kind of masonry represents a crucial step in the development of Greek monumental stone architecture, marking a departure both from mudbrick construction, which had been the norm for most Greek buildings, and from previous experiments with stone construction,” Pierattini writes.

The first documented use of the lever in Greek temples

Evidence of the device is considered to be grooves etched onto the bottom of stones used to construct the Corinth and Isthmia temples. These grooves are familiar to historians, but until now, it had been unknown if the grooves had occurred as a result of lifting the blocks during the building process or from moving them around in quarries.

For the study, Pierattini studied stone blocks used in early Greek temples while he also engaged in some hands-on experimental archaeology. He studied the blocks from the mid-seventh-century temples at Corinth and Isthmia and their peculiar markings—two parallel rope-grooves cut into their undersides which turned up on one end.

Using actual stones and ropes, Pierattini found that the grooves could have served a dual function, allowing builders to both lift the blocks and position them tightly against their neighbors along the walls of buildings.

“With heavy stone blocks and high friction between stone surfaces, this was a highly problematic step of construction that in later times would require sets of purpose-made holes for using metal levers,” said Pierattini.

“Μy paper demonstrates that the builders of the early temples at Corinth and Isthmia were already using levers for the final setting of the blocks. This represents the first documented use of the lever in Greek architecture,” the professor explained to Gizmodo.

Ancient Greek scientist Erasistratus (300-250 B.C.) is credited with being among the first human lie detectors. He devised a specific technique to read a person’s physical response so as to spot when an individual was lying.

While in Alexandria, Egypt, he is said to have proven Prince Antiochus was desperately in love with his father’s new wife, Stratonice. He noted how his pulse increased significantly whenever the queen’s name was mentioned, despite his insistence that he did not have the hots for his stepmother.

Love-struck, he fell ill with passion and chose to pine away in silence. The physicians were unable to discover the cause and nature of his disease.

Erasistratus himself was at a loss at first, until, finding nothing amiss about his body, he began to suspect that it must be the man’s mind that was diseased and that he might perhaps be in love.

Erasistratus confirmed his conjecture when he observed that the skin of Antiochus grew hotter, his color deeper, and his pulse quicker whenever Stratonice came near him, while none of these symptoms occurred on any other occasion.

The Greek physician eventually told the father, King Seleucus, that his son’s disease was incurable, for he was in love with the monarch’s wife and that he chose to die rather than to disclose his secret.

According to the anecdote, Seleucus not only gave up Stratonice, but also resigned to his son several provinces of his empire.

Erasistratus founded school of anatomy in Alexandria

Erasistratus, along with fellow physician Herophilus, founded a school of anatomy in Alexandria where they carried out anatomical research.

He is credited for his description of the valves of the heart. He also concluded that the heart was not the center of sensations. Instead, he said, it functioned as a pump. He was among the first to distinguish between veins and arteries, believing that arteries were full of air and carried the “animal spirit” (pneuma).

Together with Herophilus, he is credited by historians as the potential founder of neuroscience due to his acknowledgment of nerves and their roles in motor control through the brain and skeletal muscles.

Furthermore, Erasistratus is seen as one of the first physicians/scientists to conduct recorded dissections and potential vivisections alongside Herophilus.

The two physicians were said by several Roman authors, notably, Augustine, Celsus, and Tertullian, to have performed controversial vivisections on criminals to study the anatomy and possible physiology of human organs while they were in Alexandria.

Related: Ancient Library of Alexandria One of Greatest Treasures of Mankind

The village of Kandanos on Crete was burned to the ground, and Nazi troops massacred all 180 residents on June 3, 1941 during the years of the German occupation.

It was one of the worst atrocities committed by the occupiers and has haunted Crete and Greece for decades.

Battle of Crete

The Battle of Crete began on May 20, 1941, with Germany employing 750 glider-borne troops, 10,000 paratroopers, 5,000 airlifted mountain soldiers, and 7,000 seaborne troops. It was the first occasion when German parachutists were used en masse and the first mainly airborne invasion in military history.

It was also the first time German soldiers had encountered mass resistance from a civilian population, and they suffered unexpectedly large numbers of casualties.

The outnumbered Greek soldiers, along with the Allied forces based on Crete, fought bravely but were vastly outnumbered. Cretan civilians joined the battle with whatever weapons were at hand—mostly kitchen knives, but rakes, clubs, and even walking sticks were used in desperate hand-to-hand combat for their homeland.

German parachutists were often knifed or clubbed to death as they landed on fields of Crete. In one recorded incident, an elderly Cretan man clubbed a paratrooper to death with his walking cane before the German could even disentangle himself from his parachute.

In another incident, a local priest and his son broke into a village museum, took two rifles from the Balkan War era, and sniped at German paratroops as they landed. The Cretans also began to use small arms from captured German soldiers as the battle continued.

However, this courage came at a terrible cost, as the Germans retaliated as soon as they managed to gain control of Crete.

The temporary German commander of the island, Kurt Student, ordered a series of brutal reprisals against the local population immediately after the surrender of Crete on May 31, 1941.

Every last resident of Kandanos, amounting to a total of 180 men, women, and children, were brutally massacred, and their ancient village was burned to the ground.

Nazis order for the destruction of Kandanos

Below is the order of the German commander:

“It is certain that the civilian population including women and boys have taken part in the fighting, committed sabotage, mutilated and killed wounded soldiers. It is therefore high time to combat all cases of this kind, to undertake reprisals and punitive expeditions which must be carried through with exemplary terror. The harshest measures must indeed be taken and I order the following: shooting for all cases of proven cruelty, and I wish this to be done by the same units who have suffered such atrocities. The following reprisals will be taken:
1. Shooting
2. Fines
3. Total destruction of villages by burning
4. Extermination of the male population of the territory in question
My authority will be necessary for measures under 3 and 4. All these measures must, however, be taken rapidly and omitting all formalities. In view of the circumstances the troops have a right to this and there is no need for military tribunals to judge beasts and assassins.”

After the surrender of Germany, General Kurt Student was captured by the British. In May 1947, he came before a military tribunal to answer to charges of mistreatment and murder of prisoners of war by his forces on Crete.

Greece’s demand to have Student extradited was declined. Student was found guilty of three out of eight charges and sentenced to five years in prison. However, he was given a medical discharge and was released in 1948. Student was never tried for crimes against civilians.

Today, Kandanos has been rebuilt and is the seat of the eponymous municipality. Reproductions of the somber Wehrmacht signposts commemorating the village’s destruction are displayed on a local war memorial.

Related: Greek Scientists Identify Nazi Victims Executed 83 Years Ago in Crete