Oxford University Unveils 2 Letters on Ancient Egyptian Mathematics

The Pyramid of Khufu, the largest of the pyramids of Giza. (Reuters)
The Pyramid of Khufu, the largest of the pyramids of Giza. (Reuters)
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Oxford University Unveils 2 Letters on Ancient Egyptian Mathematics

The Pyramid of Khufu, the largest of the pyramids of Giza. (Reuters)
The Pyramid of Khufu, the largest of the pyramids of Giza. (Reuters)

Two researchers at Oxford University unveiled a scientific document on mathematics in Ancient Egypt.

The document features two letters exchanged between Thomas Eric Peet (1882–1934), who was professor of Egyptology at the University of Liverpool and then a professor of Egyptology at Oxford, and Otto Neugebauer (1899–1990), one of the most prominent mathematics historians in the 20th century.

The letters were found at Peet's house, and then gifted to the Queen's College at Oxford. A recent study published in the latest issue of the Historia Mathematica journal, showcased the letters which shed light on the early 20th century study of ancient Egyptian math and issues of historical approaches to the ancient world.

The study was led by historian of mathematics Dr. Christopher Hollings and Egyptology Professor Richard Bruce Parkinson, who worked together on evaluating the discussions between Peet and Neugebauer, and a study prepared by Peet on a Rhind Mathematical Papyrus dating from 1537 BCE, now held in the British Museum.

In his study, Peet said the papyrus consists of over 80 arithmetical and geometrical problems and solutions, ranging from the distribution of rations among workers, to the calculation of areas and volumes. As such, it is one of the most complete surviving sources providing an insight into the mathematics used in ancient Egypt.

Peet's edition reignited academic interest in Egyptian mathematics. One of the people whom his work inspired was Neugebauer, who subsequently wrote a doctoral dissertation on the principles of Egyptian fraction reckoning (as reflected in the Rhind Papyrus).

According to Hollings and Parkinson, the letters between the pair shed light on the way in which ancient Egyptian mathematics was being re-evaluated in the 1920s.

They explained that the letters reveal a contrast between the attitudes of two scholars who approached the subject with different viewpoints. Both were competent mathematicians and Egyptologists, and yet one of them, Neugebauer, put the mathematics first, and linked the modern ideas on mathematics to the direct evidence of papyri.

As per Peet, he brought Egyptological considerations to the fore, and confined his analysis largely to what was clearly and unequivocally present in the ancient text.



Eastern Half of US Braces for More Long Days of Dangerous Heat

A kid cools off in Crown Fountain in Millennium Park as temperatures climbed to over 95 degrees Fahrenheit (35 degrees Celsius), in Chicago, Illinois, on June 21, 2025. (Photo by KAMIL KRZACZYNSKI / AFP)
A kid cools off in Crown Fountain in Millennium Park as temperatures climbed to over 95 degrees Fahrenheit (35 degrees Celsius), in Chicago, Illinois, on June 21, 2025. (Photo by KAMIL KRZACZYNSKI / AFP)
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Eastern Half of US Braces for More Long Days of Dangerous Heat

A kid cools off in Crown Fountain in Millennium Park as temperatures climbed to over 95 degrees Fahrenheit (35 degrees Celsius), in Chicago, Illinois, on June 21, 2025. (Photo by KAMIL KRZACZYNSKI / AFP)
A kid cools off in Crown Fountain in Millennium Park as temperatures climbed to over 95 degrees Fahrenheit (35 degrees Celsius), in Chicago, Illinois, on June 21, 2025. (Photo by KAMIL KRZACZYNSKI / AFP)

Tens of millions of people across the Midwest and East braced Sunday for another sweltering day of dangerously hot temperatures as a rare June heat wave continued to grip parts of the US.

Most of the northeastern quadrant of the country from Minnesota to Maine was under some type of heat advisory Sunday. So were parts of Arkansas, Tennessee, Louisiana and Mississippi, The Associated Press reported.

The temperature had already reached 80 degrees Fahrenheit (26.6 degrees Celsius) in the Chicago area by 7:30 a.m. Sunday, according to the National Weather Service. Forecasts called for heat indices of between 100 and 105 degrees F (37.7 to 40.5 degrees C).

The heat index in Pittsburgh was expected to top 105 F. The temperature in Columbus, Ohio, was 77 F (25 C) at 8:30 a.m. Highs there were expected to reach 97 F (36 C) with a heat index around 104 F (40 C).

Forecasts called for a heat index of 100 F in Philadelphia on Sunday, with a 108 F (42.2 C) heat index on Monday.

The city’s public health department declared a heat emergency starting at noon Sunday and ending Wednesday evening. Officials directed residents to air-conditioned libraries, community centers and other locations, and set up a “heat line” staffed by medical professionals to discuss conditions and illnesses made worse by the heat. At Lincoln Financial Field, officials said each fan attending Sunday’s FIFA World Cup match would be allowed to bring in one 20-ounce (0.6-liter) plastic bottle of water.

Sunday marked the second straight day of extreme heat across the Midwest and East Coast. Heat indices on Saturday hit 103 F (39.4 C) in Chicago and 101 F (38.3 C) in Madison, Wisconsin, turning that city's annual naked bike ride into a sticky and sweaty affair.

Minneapolis baked under a heat index of 106 F (41.1 C). The actual temperature was 96 degrees F (35.5 degrees C), which broke the old record for the date of 95 F (35 C) set in 1910, according to the weather service.

The heat is expected to persist into the coming week, with the hottest temperatures shifting eastward. New York City is expected to see highs around 95 F (35 C) on Monday and Tuesday. Boston is on track for highs approaching 100 F (37.7 C) on Tuesday, and temperatures in Washington, D.C., were expected to hit 100 F on Tuesday and Wednesday.

Meteorologists say a phenomenon known as a heat dome, a large area of high pressure in the upper atmosphere that traps heat and humidity, is responsible for the extreme temperatures.

Mark Gehring, a National Weather Service meteorologist in Sullivan, Wisconsin, said this level of heat is not uncommon during the summer months in the US, although it usually takes hold in mid-July or early August. The most unusual facet of this heat wave is the sheer amount of territory sweltering under it, he said.

“It's basically everywhere east of the Rockies,” he said, referring to the Rocky Mountains. “That is unusual, to have this massive area of high dewpoints and heat.”