| 1512 | Portugal is the first European country to cultivate tobacco |
| 1561 | The tobaco plant gets named TABACUM NICOTIANA after Jean Nicot de Villemain, the French ambassador in Lisboa |
| 1866 | Foundation of FÁBRICA DE TABACOS MICAELENSE at Azores |
| 1883 | Foundation of FÁBRICA DE TABACOS ESTRELA at Azores |
| 1910 | king Emanuel II. gets overthrown, Portugal becomes a republic |
| 1911 | currency "Reis" gets replaced by "Escudo" |
| 1921 | Foundation of EMPRESA MADEIRENSE DE TABACOS at Madeira |
| 1927 | Foundation of A TABAQUEIRA (by Alfredo da Silva) and COMPANHIA PORTUGUESA DE TABACOS |
| 1958 | A TABAQUEIRA produces it's first cigarette with filter called SG |
| 1965 | COMPANHIA PORTUGUESA DE TABACOS changes it's name to INTAR |
| 1975 | A TABAQUEIRA and INTAR get nationalized |
| 1976 | Foundation of TABAQUEIRA E.P. by merger of A TABAQUEIRA and INTAR |
| 1986 | Portugal becomes part of the European Union |
| 1991 | TABAQUEIRA E.P. changes it's name to TABAQUEIRA S.A. |
| 1992 | Introduction of front health warnings |
| 1993 | Tar gets limited to a maximum of 15mg |
| 1997 | PHILIP MORRIS acquires 65% of TABAQUEIRA S.A. |
| 1998 | Tar gets limited to a maximum of 12mg |
| 2000 | PHILIP MORRIS raises it's share of TABAQUEIRA S.A. to 99% |
| 2002 | January, 1st - "Escudo" gets replaced by "Euro", exchange rate: 200,482 Escudos = 1 Euro |
| 2003 | new big health warnings with white background and black frame (45% of surface at front, 55% at back), no more names like "light" or "mild" |
| 2004 | January, 1st - maximum tar gets reduced to 10mg, nicotine to 1.0mg |
| 2016 | May, 20th - new pictured health warnings (65% of surface), additional flavours (except menthol) are no longer permitted, tar/nicotine/CO declarations are no longer permitted, terms like "Slims", "without additives", "natural" or "one" are no longer permitted, pillow/square/round/sliding packs are no longer permitted |
| 2020 | May, 20th - menthol cigarettes are no longer permitted |