The Foreword to this special issue of Itinerario describes the historical questions that inspired the Global Sea Routes project, from which the essays in the issue derive. It then illustrates the particular sources used in the project, namely logbooks, specifically those of the English East India Company, whose characteristics and interpretation problems are briefly presented. Then, it illustrates the digital tools used in the analysis of those sources and to obtain the digital graphic and cartographic representation of the research results; and finally, it introduces each individual essay contained in the issue.

Crossing the North Atlantic was one of the world's most important oceanic voyages by the eighteenth century. By then, ships built and owned in the British North American colonies and, late in the period, the United States were crossing this dangerous and often-fickle ocean in large numbers. The surviving logbooks of such vessels can serve as unique source material for understanding the Atlantic experience for scholars prepared to interpret and exploit them. Recording the Atlantic passages of the small schooner Sultana, the snow George, and the brig Reward in the Global Sea Routes (GSR) database creates a record for future researchers with a broad array of interests, but only after the obstacles to interpretation are overcome, to the extent possible. I will discuss what those obstacles are, laying out the information to be found in these logs, how it is entered and why, and what it has to tell us about the Atlantic and those who used it at the time. I will make the case that what is contained in these sources justifies the acquisition of the technical and historical expertise necessary to use them.

Note: the snow rig was popular among mid-size ocean-going Atlantic merchant ships by the mid-eighteenth century. It is similar to the two-masted brig, as opposed to the three-masted ship, but it has a small “try-mast” just behind the main mast (the after mast), on which the mizzen sail was hoisted.

The role played by the East India Company in European expansion in early modern Asia is of such importance that it has generated a large body of scholarly literature. However, the logbooks of the East Indiamen, compiled by their captains, are largely overlooked as a primary source for the history of navigation, despite the wealth of information such firsthand, “from below” documents could provide about those voyages. As part of the Global Sea Routes (GSR) project, this essay analyses the voyage of the Nassau (1781–85) along four main themes: the peculiarities of navigation during the Age of Sail, when the duration of a voyage was difficult to predict and subject to a range of possible accidents; the concrete reality of life on board, oscillating between the various activities of the crew and the episodes of desertion and insubordination that broke its daily routine; her military deployment, as the Nassau was directly involved in operations related to the Second Anglo-Mysore War; and, finally, her commercial activities, from the port cities of India to the seas of China.

This essay aims to give an account of the untold and unexpected events faced by the crew of the Compton, one of the East India Company's vessels that set out on a routine trade voyage from Deptford to Bombay in April 1723. Under the command of Captain William Mawson, scrupulous compiler of the logbook, the ship proceeded along the known routes indicated by the East India Company (EIC) charts, and through the passages recommended by the navigation manuals. Finding consonance with recent research suggestions on “alternative histories” of the EIC, this article brings to light the narrative potentialities of the logbook, which is therefore considered not only a technical device, but also a tool for reconstructing the actual experience of navigation. This is the approach of the historical geodatabase of European global navigation Global Sea Routes (GSR), which bases its research method on ship's logs and other primary sources produced by the practitioners themselves. In order to provide a richer account of the known history of the EIC's shipping in the early modern age, this essay will analyse Mawson's logbook, highlighting its peculiarities as a container for a wealth of information useful for creating a narrative construction.

Research into maritime history using digital tools is a growing field, with projects that in recent years have focused on the role of sea spaces in the dynamics of globalisation on an economic and juridical level as well as on a cultural level, with respect to the circulation of knowledge. In this introduction to our special issue, we offer some historiographical observations on the codification of knowledge in seafaring practice, emphasising how the use of digital tools to process and represent primary sources may encourage historians to formulate new questions about the relationship between European culture and the sea during the early modern age. In order to present the articles in this issue and the original contribution they make to the field, we also focus on the historical and cultural significance and methodological challenges posed by primary sources such as logbooks. We illustrate how the analysis of logbooks in a digital environment such as Global Sea Routes (GSR), a project conceived and coordinated by Guido Abbattista, can foster a better understanding of the role of routine navigations in early commercial globalisation.

In the middle years of the 20th Century, few merchant ships were fitted with radar and, on those that were, shipmasters often looked upon it as a distraction from a watchkeeper's proper duties rather than as a useful aid to navigation.

For shipmasters of that persuasion, the only place to keep watch was outside the wheelhouse on an exposed bridge wing; mostly the starboard wing because the COLREGS (‘Collision Regulations’ or, more properly, ‘The International Regulations for Preventing Collisions at Sea’) required us to give way to ships approaching from the starboard side. Well, the bridge wing was an attractive place to spend a few hours on a calm, tropical night, but it could be highly disagreeable and sometimes, I thought, actually dangerous, in a North Atlantic rainstorm.