John Boot opens first Boots store, selling herbal remedies, in Goose Gate, Nottingham, UK
Maison Thomas pharmaceutical distributor is founded in Agen, France
The Boots business begins to develop under Jesse Boot, John Boot's son
Interpharm pharmaceutical distributor created in The Netherlands
Charles R. Walgreen Sr. purchases the drugstore where he worked as a pharmacist in Chicago, U.S.
Walgreen Co. is formed and the drugstore chain expansion begins with the opening of its second store
Edgar Moss opens his first Moss Chemists store in Middlesex, UK
S.A.F.A. pharmaceutical distributor is created in Spain
Walgreens invents the malted milkshake
Walgreens stock becomes publicly traded
Boots acquires Beeston site in Nottingham
Boots opens its 1,000th store in the UK
Walgreens stock is listed on the New York Stock Exchange
Boots launches No7 cosmetics
UniChem group is formed in the UK to serve wholesale pharmaceutical products to independent pharmacies
Boots launches Soltan suncare range
Walgreens begins the transition to self-service stores
Moss Chemists prescription service delivery vans begin operating
The first self-service Boots stores are trialed in London, UK
Walgreens enters the Puerto Rico market
Walgreens becomes the first major drugstore chain in the U.S. to put its prescriptions into child-resistant containers
Boots launches Ibuprofen (Brufen) in the UK
Walgreens reaches $1 billion in sales
Pharmaceutical wholesaler Alleanza Farmaceutica is founded by Stefano Pessina in Italy
The first Intercom pharmacy computers are installed in Walgreens pharmacies in Iowa
Pharmaceutical wholesaler Di Pharma is founded by Ornella Barra in Italy
Walgreens opens its 1,000th store
Walgreens opens its first drugstore with a drive-thru pharmacy
UniChem purchases Moss Chemists in the UK
Alliance Santé group is formed from the merger between Alleanza Salute Italia and French pharmaceutical wholesalers ERPI and IFP
Alliance UniChem is formed from the merger of Unichem and Alliance Santé
Alliance UniChem acquires S.A.F.A. in Spain
Boots becomes the largest retail pharmacy chain in Ireland
Walgreens.com launches its online pharmacy
Walgreens opens its 3,000th store in Chicago
Alliance UniChem commences acquisition of Alliance Apotekene pharmacies in Norway and acquires 25 percent stake in Turkish pharmaceutical wholesaler, Hedef
Alliance UniChem acquires Interpharm pharmaceutical wholesaler and De Vier Vijzels pharmacy chain in The Netherlands
Walgreens becomes the first drugstore to offer prescription labels in multiple languages chainwide
Alliance UniChem increases its stake in Hedef Alliance to 50 percent
Alliance UniChem acquires 29.99 percent of German pharmaceutical wholesaler ANZAG
Alliance UniChem merges with Boots Group to form Alliance Boots
Walgreens acquires Happy Harry's drugstore chain
Walgreens begins offering in-store health clinics
Alliance Boots wholesale businesses begin to be rebranded to Alliance Healthcare
Alliance Boots is privatized
Walgreens opens its first store in Hawaii and its 6,000th store, located in Louisiana
Walgreens acquires Take Care Health Systems and Option Care
Over 1,000 Alliance Pharmacy stores in the UK begin to be rebranded to 'Your local Boots pharmacy'
Alliance Boots forms a 50:50 joint venture with Guangzhou Pharmaceuticals Corporation, a major pharmaceutical wholesaler in China
Merger of Boots Opticians and Dollond & Aitchison to form the second largest optical chain in the UK
Alliance Boots becomes the majority shareholder in Hedef Alliance
Alliance Boots become the majority shareholder in ANZAG
Walgreens completes its acquisition of the New York-based Duane Reade drugstore chain
Walgreens opens its first Well Experience format in stores
Duane Reade opens 24-hour flagship store in New York at 40 Wall Street
Walgreens acquires drugstore.com and Beauty.com
Walgreens acquires a 45 percent stake in Alliance Boots, taking the first step in the strategic partnership to create the first global pharmacy-led, health and well-being enterprise
Walgreens opens its 8,000th store in Los Angeles and acquires USA Drug, a pharmacy chain in the mid-South U.S.
Walgreens and Alliance Boots form Walgreens Boots Alliance Development joint venture in Bern, Switzerland
Walgreens and Alliance Boots announce a strategic, long-term relationship with AmerisourceBergen to collaborate on global supply chain opportunities
Walgreens exercises option to complete second step of its strategic partnership with Alliance Boots, forming Walgreens Boots Alliance through the full combination of Walgreens and Alliance Boots
Alliance Boots completes the acquisition of a 12 percent stake in Nanjing Pharmaceutical Company Limited, a major Chinese pharmaceutical wholesaler
Alliance Boots completes acquisition of Farmacias Benavides in Mexico and Farmacias Ahumada in Chile
Walgreens enters into 20-year fulfillment agreement with Valeant Pharmaceuticals that includes reduced pricing on Valeant products
Hedef Alliance rebrands to Alliance Healthcare Turkey
Walgreens Boots Alliance enters into long-term global supply chain agreement with Fareva
Walgreens Boots Alliance receives regulatory clearance to purchase 1,942 Rite Aid drugstores in the U.S.
Walgreens Boots Alliance joins the Dow Jones Industrial Average as one of its 30 components.
In July, the company completed an acquisition to acquire a 40 percent minority stake in GuoDa, a leading retail pharmacy chain in China.
In September, WBA and Alibaba launches a Boots flagship store on Tmall Global, Alibaba's B2C platform for international brands and retailers, introducing iconic Boots beauty brands to more than half a billion consumers on Alibaba's platforms in China.
In October, Walgreens became the first U.S. retailer to test on-demand drone delivery service with Wing Aviation LLC
In June, Walgreens Boots Alliance, Inc. completed the sale of its Alliance Healthcare businesses to AmerisourceBergen Corporation, allowing WBA to further focus on expanding its core retail pharmacy businesses and bring more innovative healthcare offerings to customers and patients.