Visits of foreign heads of state or government to the United States, and travels of US presidents abroad, as directed visitor-to-host events.
Format
A data frame with 3,945 rows: time (days since the first visit),
date, sender (visiting country), receiver (host country),
direction ("to_us" or "from_us").
Source
US Leader-to-Leader Diplomatic Visits Dataset, 1946–2019. Harvard Dataverse, doi:10.7910/DVN/2ZNR5R , licence CC0 1.0.
Details
Country names follow the visits table's cleaned names. Where that
name is missing (microstates and a few presidential trips) the raw name is
used, or the country of the listed locales; the two source tables' spellings
are merged ("Korea, Republic of" is South Korea, "Zaire" is
Congo - Kinshasa). A 1998 presidential trip labelled Congo whose locales are
all in Uganda is coded as Uganda. See data-raw/bundle_open_datasets.R.