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Sylvia Rose
Aug 31, 20243 min read
Making Sulfuric Acid in History & Today
Sulfuric acid (H₂SO₄) is one of the most important chemicals in the world, with many uses from car battery production to fertilizer...
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Sylvia Rose
Aug 31, 20244 min read
How to Make Copperas Red: Simply Science
Copperas, iron(II) sulfate or green ferrous sulfate, is a versatile compound in various applications, from agriculture to water...
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Sylvia Rose
Aug 31, 20245 min read
Natural Purple Dyes: Ancient & Medieval
Dyers, coloring professionals, metal workers and gemologists seek vibrant colors and tones since early civilization. The first use of...
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Sylvia Rose
Aug 29, 20244 min read
How to Extract Red from Hematite: A Step-by-Step Guide
Hematite, an iron oxide mineral with the chemical formula Fe2O3, is prevalent around the world. Known for metallic luster and red earth...
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Sylvia Rose
Aug 29, 20243 min read
How to Make Copperas Ferrous Sulfate: Process
Copperas, known chemically as ferrous sulfate (FeSO₄), has been a vital compound across various industries for centuries. Although...
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Sylvia Rose
Aug 29, 20243 min read
Caput Mortuum: Dead Head Purple Pigment
Caput mortuum (Latin "dead head") is a purple hematite iron oxide pigment, used in oil paints and dyes. Due to cultural significance of...
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Sylvia Rose
Aug 29, 20247 min read
Question of Alchemy in Ancient Rome
Alchemy, a fusion of science, philosophy and mysticism, emerges in practice from the 1st century AD. Among the power civilizations of...
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Sylvia Rose
Aug 28, 20244 min read
Famous Women of Ancient Rome
Women are second class citizens in ancient Rome, but a few bright stars shine through this mutable civilization. Renowned for art,...
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Sylvia Rose
Aug 28, 20244 min read
Status & Rights of Women in Imperial Rome
The status and rights of women in ancient Rome are complex and evolve significantly over time. This societal structure is influenced by...
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Sylvia Rose
Aug 28, 20245 min read
Roman Empire: Situation 300 AD
In 300 AD, the Roman Empire is falling apart. Under the rule of Emperor Diocletian, who wants to restore the grandeur of Rome, the empire...
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Sylvia Rose
Aug 27, 20247 min read
Renaissance Wars: Venice vs. Ottoman
The Ottoman-Venetian Wars are seven major conflicts between the Ottoman Empire and the Republic of Venice from the late 14th to the 18th...
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Sylvia Rose
Aug 27, 20244 min read
Venice Italy: Jewel of the Renaissance
Venice during the Renaissance emerges as a vibrant center of art, culture and commerce, influencing the broader European scope. The...
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Sylvia Rose
Aug 27, 20243 min read
Alchemy & Renaissance Glass: Antonio Neri
Antonio Neri is a Renaissance Florentine priest, well known for contributions to alchemy and glassmaking. As a youth Neri is drawn to the...
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Sylvia Rose
Aug 26, 20243 min read
Tricky Alchemy: Caput Mortuum Purple
Caput mortuum, Latin for as "dead head" is an ominous name for a valued color. As an iron oxide it's easy to make at home. As a purple...
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Sylvia Rose
Aug 26, 20245 min read
Ancient Roman Baths & Bathing
Bathing is an important part of ancient Roman culture. Structures such as the Baths of Diocletian or Thermae Diocletiani in Rome are a...
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Sylvia Rose
Aug 26, 20244 min read
Olympiodorus of Thebes & His Parrot
Olympiodorus of Thebes (c. 380 - 425 AD) is a multifaceted figure. A Roman historian from Egypt, poet, philosopher, and diplomat, he...
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Sylvia Rose
Aug 25, 20245 min read
Great Persecution Rome vs. Christianity
The Diocletianic or Great Persecution, a significant event in the history of the Roman Empire, marks a period of intense hostility toward...
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Sylvia Rose
Aug 25, 20245 min read
Religious Persecutions of Diocletian
Following the Peace of Nisibis, Emperor Diocletian and Galeriu s Maximianus r eturn to the bustling city of Antioch, today's southern...
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Sylvia Rose
Aug 25, 20243 min read
Alexandria & the Siege of Diocletian
Ancient Alexandria, jewel of Egypt, is renowned as a city of philosophy, medicine and alchemy. A crucial turning point happens 297 AD....
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Sylvia Rose
Aug 24, 20246 min read
Alchemy: Dyeing Stones to Look Like Gems
Although alchemy is often associated with gold-making, another essential skill of the alchemist is to color or dye stones like quartz...
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