This paper summarizes the history and evolution of the electroencephalogram (EEG). The EEG, used to record the electrical activity of the brain, is a pivotal tool in neuroscience and medicine. Its history and evolution reflect significant advancements in our understanding of brain function and our ability to diagnose and treat neurological conditions. This tool has revolutionized our understanding of the brain\'s electrical activity and is the cornerstone for the diagnosis and treatment of epilepsy and related disorders. The evolution of the EEG from early experimental observations to sophisticated modern applications highlights the profound progress in our ability to monitor and interpret brain activity. The EEG remains an invaluable tool in clinical and research settings, continually evolving with technological advancements to expand our understanding of the human brain. This review traces the journey of this iconic tool.

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In 1911, Mabel Purefoy FitzGerald (1872-1973) conducted a study in the mountains of Colorado that offered invaluable insights into how the body responds to chronic hypoxia. Researchers awarded the Nobel Prize for Physiology or Medicine 2019 cited her work as critical in unravelling the hypoxia sensing system. The astounding career situation in which FitzGerald found herself while conducting this study offers important insights into the challenges faced by women in science at the turn of the twentieth century. Like Ginger Rogers dancing with Fred Astaire, FitzGerald did the equivalent of everything her male colleagues did, only backward and in high heels. Although it is tempting to believe that such inequities for women are relegated to history, the career challenges faced by 2023 Nobel Laureate Katalin Karikó highlight evidence that the struggle for equality of women in science remains a significant problem.

Metabolic health is tightly regulated by neuro-hormonal control, and systemic metabolic dysfunction may arise from altered function of the hypothalamic-anterior pituitary axis (HAPA). Ancient experimental observations of hypothalamic obesity (HO) and liver cirrhosis occurring among animals subjected to hypothalamic injury can now be explained using the more recent concepts of lipotoxicity and metabolic dysfunction-associated steatotic liver disease (MASLD). Lipotoxicity, the range of abnormalities resulting from the harmful effects of fatty acids accumulated in organs outside of adipose tissue, is the common pathogenic factor underlying closely related conditions like hypothalamic syndrome, HO, and MASLD. The hormonal deficits and the array of metabolic and metabolomic disturbances that occur in cases of HO are discussed, along with the cellular and molecular mechanisms that lead, within the MASLD spectrum, from uncomplicated steatotic liver disease to steatohepatitis and cirrhosis. Emphasis is placed on knowledge gaps and how they can be addressed through novel studies. Future investigations should adopt precision medicine approaches by precisely defining the hormonal imbalances and metabolic dysfunctions involved in each individual patient with HO, thus paving the way for tailored management of MASLD that develops in the context of altered HAPA.

Jean-Martin Charcot, often lauded for his seminal contributions, is seldom critiqued for his blunders. One such blunder was his double-semidecussation scheme for the retinocortical visual pathways, proposed in 1875 to explain, on neuroanatomic grounds, cases of hysteria that manifest hysterical amblyopia accompanied with ipsilateral hemianaesthesia. Charcot\'s scheme was inconsistent with the older, broadly correct scheme of Prussian ophthalmologist Albrecht von Gräfe. Charcot failed to perform clinicopathologic correlation studies. His analysis relied on a series of mistaken conclusions he made in conjunction with Swiss-French ophthalmologist Edmund Landolt: (1) only an optic tract lesion could produce a homonymous hemianopsia; (2) cerebral lesions, if they ever produced homonymous hemianopsia, did so by secondary effects (e.g. pressure) on the optic tracts; and (3) damage to the cortical projections from the lateral geniculate produces a crossed amblyopia. Challenges to Charcot\'s theory came from within France by 1880. By 1882, Charcot recognized that his scheme was erroneous, and he approved a thesis by his pupil Charles Féré that reverted to Gräfe\'s scheme with an ill-conceived modification to accommodate Charcot\'s concept of hysterical cerebral amblyopia. A critique by American neurologist Moses Starr in 1884 argued for Gräfe\'s scheme and refuted Charcot\'s erroneous scheme and its subsequent derivatives.

History of Dentistry starts from the moment the Late Paleolithic Man used a toothpick fashioned from a bone or wood splinter, or the moment our human ancestors began to manipulate the surface of a tooth to remove its retentiveness, so food does not get stuck. That was at least 14,000 years ago, based on available evidence. The current timeline, compiled in this article, is one of many published over the years. However, this timeline incorporates three new strategies. First, it extends to select medical and fundamental dental discoveries, as the History of Dentistry can only be told with the main events within the History of Medicine. Second, it is more detailed (350 entries) than any previous timeline the author has encountered. Third, several critical primary references to support events listed in this timeline characterize this effort. Finally, 130 illustrations are included to improve the visualization of dates. The manuscript also includes a new display of the five main stages of dentistry throughout its history.

With this volume of the Journal of the History of Dentistry we are proud to introduce to our readers and our healing professions, in-depth Essays that focuses on our historical evolution. One might ask, \"What is an Essay and Why is This Unique?\" The simplest definition of an essay is a non-fictional written work that focuses on a particular subject, sometimes in general terms and sometimes in depth. The word \"essay\" is derived from the French word \"essai,\" (or as a collection \"Essais) meaning trial or attempt. The first use of this approach to address a particular issue has often been attributed to the Frenchman Michel de Montaigne, born in 1533 (Fig. 1).

The present communication examines the phenomenon of curfew in relation to the COVID-19 pandemic with special attention being laid on the management of the epidemic by Italian health authorities. A literature review and a historical-medical analysis were performed. A historical-medical excursus on the word curfew is offered and a comparison between military and health scenarios is offered. Finally, this article stresses how words connected with wartime events should be contextualized when adopted in unmilitary scenarios such as pandemic events and related public health responses.

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