Open Questions

Open Florence Cathedral

Why It Is Open Brunelleschi left no treatise and guarded his methods in his own lifetime, so the surviving evidence is the dome itself, the account books, and machines described secondhand. How the herringbone brickwork and the double shell actually stabilized each fresh course of the rising vault, and how the courses were laid out in space without centering to guide them, is still argued among historians of construction, with competing geometric reconstructions defended in the literature and none established.

What Would Settle It A reconstruction of the laying-out method that accounts for the dome as measured, the documented equipment and the account-book record together, tested at scale rather than argued from drawings alone.

Expertise Needed Construction History, Structural Engineering, Archival Research

Question posed in Encyclopedia Britannica, Florence Cathedral and Brunelleschi articles; dome construction sections.

Open Concrete

Why It Is Open Recent materials research has produced strong partial answers, including reactions between seawater and volcanic ash that grow reinforcing minerals in Roman marine concrete, and lime fragments that may reseal cracks as they open, but the full recipe and practice remain incompletely understood, translation of the findings into modern durable and low-carbon concretes is unfinished work, and the research groups involved continue to publish competing accounts of which mechanisms matter most.

What Would Settle It A validated account of the Roman mix and curing practice sufficient to reproduce its durability in modern test structures, monitored over decades rather than inferred from laboratory samples.

Expertise Needed Materials Science, Archaeology, Civil Engineering

Question posed in Encyclopedia Britannica, Concrete and Roman architecture articles; ancient concrete durability coverage.

Open The Vitruvian Triad

Why It Is Open De architectura carries no internal date, and scholarly estimates for when Vitruvius composed the work span roughly 30 to 15 BC. This atlas records a formulated-year using a plain Gregorian Int column, and the house voice convention keeps BC-era dates in prose rather than forcing them into that integer field, so no defensible single year can be written there for this ancient concept.

What Would Settle It A narrower scholarly consensus date for the composition of De architectura, or a dedicated atlas convention for recording circa BC dates outside the plain Int column, would let this fact be written honestly instead of left blank.

Expertise Needed Classical scholarship, architectural history

Question posed in The Ten Books on Architecture, Marcus Vitruvius Pollio, translated by Morris Hicky Morgan, General work, dating uncertainty is widely noted rather than tied to one page.

Open Universal Design

Why It Is Open Multiple encyclopedic and institutional sources credit the architect Ronald Mace with coining the term universal design to describe designing products and environments usable by everyone, but the pages consulted during this research pass describe who coined the term without stating the year. The year 1985 is widely repeated in informal writing but was not confirmed against a primary or clearly citable secondary source in this pass.

What Would Settle It A citation to an early publication by Ronald Mace, an institutional history page from the Center for Universal Design at North Carolina State University, or a peer reviewed history of the concept that names the year directly.

Expertise Needed Architectural history, disability studies

Question posed in Wikipedia, Universal design and Ronald Mace articles, lead sections.

Open Ornament and Crime

Why It Is Open Loos's polemic attacks applied, imitative ornament, carved or molded decoration added to a surface, while his built interiors, the Villa Muller in Prague among them, are finished throughout in costly veined stone and fine wood chosen expressly for their natural pattern and color. Some historians read this as fully consistent with his stated position, since the material itself is left plain and unworked rather than carved into applied decoration; others read it as the polemic's absolutism failing to survive contact with his own practice, arguing that a client experiencing a room sheathed in book-matched marble is having exactly the sensory, expensive, status-marking experience the essay claims to reject. Both readings appear in the architectural-history literature and neither has settled the question.

What Would Settle It A close comparison of Loos's own later writing about specific interiors against the built rooms themselves, room by room, testing whether he offers a consistent principle distinguishing plain natural material from ornament, or whether the distinction is asserted rather than argued.

Expertise Needed Architectural History, Design Theory

Question posed in Sir Banister Fletcher's A History of Architecture, Banister Fletcher, edited by Dan Cruickshank (20th edition), Sections on Adolf Loos and the modern movement's origins.

Open Imhotep

Why It Is Open Imhotep was deified by later Egyptians as a god of medicine and wisdom, and his name is recorded on statue-base inscriptions of the pharaoh Djoser, but despite extensive archaeological search at Saqqara, most notably by Walter Bryan Emery in the mid twentieth century, his own burial place has never been positively identified.

What Would Settle It Discovery and secure identification of an intact or inscribed burial context naming Imhotep, most likely somewhere in the Saqqara necropolis, where later pilgrims left votive offerings and animal mummies dedicated to him without ever marking the tomb itself.

Expertise Needed Egyptology and field archaeology

Question posed in Encyclopedia Britannica, Imhotep, legacy and later tradition section.

Open Deutsches Architekturmuseum

Why It Is Open Sources agree the museum building, a renovated 1912 villa in Frankfurt am Main, was rebuilt from 1979 to 1984 by architect Oswald Mathias Ungers and inaugurated in 1984, but do not state whether the museum as an institution, its founding board, collection and charter, was established earlier, when the renovation began in 1979, or exactly at the 1984 opening.

What Would Settle It A dated founding charter, or an institutional history published by the museum itself, distinguishing the institution own establishment from the building 1984 public opening.

Expertise Needed Institutional history, museum studies

Question posed in Wikipedia, Deutsches Architekturmuseum, German Wikipedia, construction and opening section.