FLO5855978: Dog violet, Viola riviniana, and heath dog-violet, Viola canina / Bridgeman Images

FLO5855983: Round-leaved sundew, Drosera rotundiflora / Bridgeman Images

FLO5856013: Lesser marshwort, Apium inundatum / Bridgeman Images

FLO5856020: Japanese hedge parsley, Torilis japonica / Bridgeman Images

FLO5856038: European rowan or mountain-ash, Sorbus aucuparia / Bridgeman Images

FLO5856043: Dropwort, Spiraea filipendula / Bridgeman Images

FLO5856044: Red-leaved rose, Rosa glauca Vill. / Bridgeman Images

FLO5856051: Lady's mantle, Alchemilla vulgaris / Bridgeman Images

EVB2923307: Money for the Vietnam War. President Lyndon Johnson signs the special billion appropriation to fight the war in Vietnam. May 7, 1965 / Bridgeman Images

EVB2923314: President Lyndon Johnson meets with his Cabinet. A chart lists the status of Congressional legislation, May 16, 1967 / Bridgeman Images

EVB2923315: Heads of State at the funeral of Conrad Adenauer, 1967 / Bridgeman Images

EVB2923316: Former President Lyndon Johnson resumed smoking after he left the presidency. He quit his 60 cigarette per day habit after his 1955 heart attack. Photo shows him smoking a cigar on April 1, 1972, a few days before he was hospitalized for chest pains / Bridgeman Images

EVB2923319: President Lyndon Johnson meeting with George Romney. LBJ met with the HUD Secretary-designate George Romney to ease the transition to the Richard Nixon Administration. Jan. 7, 1969 / Bridgeman Images

EVB2923322: President Lyndon Johnson and wife Lady Bird during a White House ceremony. 1964 / Bridgeman Images

EVB2923324: President Lyndon Johnson signing the 1964 Civil Rights bill. July 2, 1964 / Bridgeman Images

EVB2923327: President Lyndon and Lady Bird Johnson sitting on a fence at the LBJ Ranch. They were proud Texans and celebrated Texas clothing, food, and lifestyle. 1964 / Bridgeman Images

EVB2923331: President Lyndon Johnson meeting with West German Chancellor Ludvig Erhard (left). With reduced tensions in Germany and the demand for troops in Vietnam, Johnson proposed to Erhard review the required strength of NATO Forces stationed in Germany. Sept. 26, 1966 / Bridgeman Images

EVB2923332: President Lyndon Johnson meeting British Prime Minister Harold Wilson. The Anglo-American special relationship was strained by differences over US Vietnam policy. June 8, 1967 / Bridgeman Images

EVB2923341: Former First Lady visits Carol Channing back stage. Lady Bird Johnson attended Channing's new Broadway musical, 'Lorelei.' in New York City. Feb. 8, 1974 / Bridgeman Images

EVB2923345: Lynda Bird Johnson (right) is greeted backstage by Barbra Streisand. The President's daughter attended Streisand's hit Broadway Musical, 'Funny Girl.' June 9, 1965 / Bridgeman Images

EVB2923352: Former President Lyndon Johnson during an interview Walter Cronkite. He described the events leading up to the decision to halt the bombing of North Vietnam in 1968. Feb. 3, 1970 / Bridgeman Images

EVB2923363: President Lyndon Johnson stands with head lowered as he awaits the arrival of President Hastings Kamuzu Banda of Malawi. Dec. 12, 1964 / Bridgeman Images

EVB2923380: Pledge of good conduct signed by Lyndon Johnson when he entered Southwest Texas State College in 1927 / Bridgeman Images

EVB2923400: Patriarch Joseph P. Kennedy with his 17 grandchildren on his birthday, Sept. 6, 1961 / Bridgeman Images

EVB2923404: Joseph P. Kennedy arrives at Buckingham Palace to present his credentials as US ambassador to the Britain, 1938 / Bridgeman Images

EVB2923406: Kennedy outing to Hialeah Race Track, 1955 / Bridgeman Images

EVB2923409: Kathleen Kennedy, with Lord Hartington, heir to the Duke of Devonshire. The couple married on May 6, 1944. Kathleen's mother Rose objected to the marriage of her daughter to the non-Catholic English aristocrat / Bridgeman Images

EVB2923414: New York States two senators touring NYC's Lower East Side. Republican Jacob Javits (left) and Democrat Robert Kennedy at Javit's birthplace (plaque). May 11, 1967 / Bridgeman Images

EVB2923428: Jacqueline Kennedy in St. Patrick's Day Parade. Mrs. Kennedy dashed from the sidelines and kissed her brother-in-law, the Senator Robert Kennedy, and after a brief exchange of greetings, she returned to the sideline. March 17, 1966 / Bridgeman Images

EVB2923451: Caucasian man with two African pigmy men. c. 1930 / Bridgeman Images

EVB2923454: A camel caravan on the Khyber Pass on the Northwest Indian Frontier. c. 1930s / Bridgeman Images

EVB2923470: Indian Prime Minister Pandit Jawaharlal Nehru says goodbye to Dr. Albert Einstein at his home in Princeton, 1947 (b/w photo), Unknown photographer, (20th century) / Bridgeman Images

EVB2923471: American high school girls of ''Relieve a Man for War Work' '. They enrolled with the US Employment Service to do any kind of odd job that would usually be done by a man. May 3, 1943. / Bridgeman Images

EVB2923481: Watergate Special Prosecution Force, 1973 (photo), Unknown photographer, (20th century) / Bridgeman Images

EVB2923483: Senate Watergate Committee, 1973 (photo), Unknown Artist, (20th century) / Bridgeman Images

EVB2923495: Stock brokers with a new box shaped stock ticker in May 1929 / Bridgeman Images