Bayer

==1863–1881==
==1881–1886==
==1886–1895==
==1895–1904==
==1904–1929==
Bayer1904a.png|
==1929–present==
===1929–2002 (primary), 2002–present (secondary)===
====1989–2002====
===2002–2010===
Bayer logo.svg|Icon
===2010–2017===
===2017–present===
Bayer (Pride, 2022).png|Pride month variant (2022) 
*Bayer logo history
*Bayer Magazine
==External links==
Category:Bayer
Category:Pharmaceutical
Category:Biotechnology
Category:Agriculture
Category:Chemical companies
Category:Pharmaceutical companies in Germany
Category:Medicine
Category:Nutrition
Category:North Rhine-Westphalia
Category:Leverkusen
Category:Germany
Category:Nazi Germany
Category:1860s
Category:1863