BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//UCLA Department of History - ECPv6.15.17.1//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:UCLA Department of History
X-ORIGINAL-URL:https://history.ucla.edu
X-WR-CALDESC:Events for UCLA Department of History
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20250309T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20251102T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20260308T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20261101T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20270314T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20271107T090000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20260427T160000
DTEND;TZID=America/Los_Angeles:20260427T173000
DTSTAMP:20260427T185645
CREATED:20260420T193512Z
LAST-MODIFIED:20260420T193512Z
UID:18473-1777305600-1777311000@history.ucla.edu
SUMMARY:History of Science\, Medicine\, and Technology Colloquium Series: "Tīrs\, the Moroccan chernozem: soils\, epistemologies and empires (1900-1930)"
DESCRIPTION:Everyone is welcome to the next installment of the History of Science\, Medicine\, and Technology Colloquium Series. UCLA’s Ethan Mefford\, will be presenting “Tīrs\, the Moroccan chernozem: soils\, epistemologies and empires (1900-1930)” \nIn 1900\, as European empires eyed Morocco\, a dark soil known locally as tīrs created a sensation among European observers\, sparking commentaries on its great fertility and theories as to its genesis. As an object of local experience and thought and of fast-cohering colonial knowledge\, tīrs traces contrasts and convergences between two epistemologies each oriented to its own conceptions of climate and agriculture. In 1908\, the geologist Louis Gentil (1868-1925) applied the factorial model of soil genesis developed by the Russian soil scientist V.V. Dokuchaev (1846-1903) and declared tīrs to be akin to the famed chernozem or “black earth” of southern Russia and Ukraine. Gentil’s theory\, though mistaken\, prevailed and became part of an authoritative discourse that supported French agricultural and political goals. This talk explores the relationship between science and empire\, and how the salient “fact” that tīrs was another chernozem reverberated through cohering French and Spanish conceptions of Morocco’s physical and human geography. \nSee you in the History of Science Room or via Zoom https://ucla.zoom.us/meeting/register/7eHDPkZiQlCkoT-U3x9BiQ.
URL:https://history.ucla.edu/event/history-of-science-medicine-and-technology-colloquium-series-tirs-the-moroccan-chernozem-soils-epistemologies-and-empires-1900-1930/
LOCATION:Bunche 5288 & Zoom
CATEGORIES:Events,History of Science Colloquium
ATTACH;FMTTYPE=image/jpeg:https://history.ucla.edu/wp-content/uploads/2026/04/Flyer_Ethan-Mefford_w-Abstract--scaled.jpg
ORGANIZER;CN="History of Science%2C Medicine%2C and Technology Colloquium Series":MAILTO:jkaptanian@ucla.edu
END:VEVENT
END:VCALENDAR