The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Notícias ao Minuto, reporting the fifth-anniversary programme, dates it exactly: "Desde que abriu portas a 18 de maio de 2014 no Mercado da Ribeira". The anniversary itself ran 16-18 May 2019 and ended on the 18th, which is consistent. Público previewed the hall on 14 and 17 May 2014, bracketing the day; Time Out's[2][4] own page says only "back in 2014", and an operator page is never the source for a date.
Time Out's[4] own page for the market, which gives the address (Mercado da Ribeira, Avenida 24 de Julho, 1200-479 Lisbon), the present line-up - "26 restaurants, 8 bars, a dozen shops, a high-end events venue, and a cooking academy" - and the curation principle the whole format rests on, "the best of the city under one roof". It is undated and says only that the market opened "back in 2014", so it backs the concept and the address, not the day.
Corroborates the May 2014 opening, the count of "around 36 restaurants and kiosks", the five named Portuguese chefs, the visitor figures (just over three million in 2016, almost four million in 2018) and the statement that Lisboa was "the first of several planned food hall ventures for Time Out[2][4] magazine". Its own first citation is Público's 17 May 2014 report.
Time Out's[2] own announcement, used here for what became of the format Lisboa started: thirteen markets trading in 2026 - Bahrain, Barcelona, Boston, Budapest, Cape Town, Dubai, Lisbon, Montréal, New York (two), Osaka, Porto and Vancouver - with five more in development.
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