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History of International Law

Thousands of titles relating to the history of international law, with specialization in subjects such as war and peace, law of the sea, international arbitration, The Hague conferences, and more.


Main Search Bar Tips

  • The main search bar is stationary throughout HeinOnline
  • Once inside the History of International Law database, the search bar will search only within this database, unless the Search All Databases box is ticked
  • Need something more robust? Click Advanced Search to perform a search using custom drop-downs
  • Need a refresher on how to construct a perfect search? Click Search Help for a quick reference guide to commonly used search syntax

screenshot highlighting Advanced Search and Search Help in History of International Law

Using the Main Search Bar

  • For example, enter the phrase "foreign trade" inside quotation marks into the search bar
    • With the one-box search, users can search for this phrase as it appears in the Title of any document or across the HeinOnline Catalog. Select Just search for to search across all metadata within this collection. In addition, users can also search for a specific Author or use the Citation option to quickly pull up a document.

screenshot of keyword search for "foreign trade" in History of International Law

  • Use the facets on the left side of the page to narrow your results by Date, Document Type, Title, Country Published, or Subjects.
  • Terms matching the search query appear in bold text within the matching text page snippets
  • Sort search results by relevance, volume date, or title
  • Save to your MyHein account, email a result, display download options, or download a PDF using the icons on the right side of each search result
  • Use the icons next to the sort-by bar to modify your current search, to search within results, to toggle all matching text pages, or to turn OFF infinite scroll

screenshot of search results for "foreign trade" in History of International Law

Using Advanced Search

  • Click Advanced Search to be taken to a page with custom facets to help maximize your research within this collection
  • Use the drop-downs to choose a variety of ways to search: 
    • Text
    • Title
    • Creator/Author 
      • Add another search field if three isn't enough
  • Select a Document Type to search within, Ctrl + click to select multiple subcollections, or search in all
  • Pick a title by citation to search within
  • Restrict results within a date range and change how results are sorted

Venn Diagram Search

  • Venn Diagram Search offers a visual representation of how search terms interact with each other
  • Helps users both refine their current search terms and become better researchers going forward
  • Find the link to Venn Diagram Search on the Advanced Search page
  • Searches are constructed by stringing together multiple terms separated by the Boolean operator "AND," with phrases grouped together in quotation marks

screenshot of Venn diagram search in History of International Law




  • Results on the right side of the page pertain to the search as we originally constructed it (represented by the red slice in the center of the intersecting circles)
  • Select Clear for the ability to hover over the different segments of the diagram and see all possible search term combinations from our original query.
  • In our example, we can see results for:
    • "prisoner of war" AND "human rights"
    • "human rights" AND peace
    • "prisoner of war" AND peace
    • the terms "prisoner of war," "human rights," and peace individually
  • Sort the results, save or export, turn to the specific page of a result, or start at the beginning of a given title

screenshot of search results for just two terms in Venn diagram search