How can people without official political power push the authorities to act? Historically, one of the most common tactics was to create a petition or supplication. Even today, every year hundreds of thousands of ordinary citizens sign e-petitions addressed to parliament which can lead directly to high-profile debates in the House of Commons. In seventeenth-century England, petitioning was ubiquitous. It was one of the only acceptable ways to address the authorities when seeking redress, mercy or advancement. As a result, it was a crucial mode of communication between the 'rulers' and the 'ruled'. People at all levels of society - from noblemen to paupers - used petitions to make their voices heard. Some were mere begging letters scrawled on scraps of paper; others were carefully crafted radical demands signed by thousands and sent to the highest powers in the land. Whatever form they took, they provide a vital source for illuminating the concerns of supposedly 'powerless' people and also offer a unique means to map the structures of authority that framed early modern society. This study will be the first to examine petitioning systematically at all levels of English government over the whole century. The project will create a valuable new resource by digitising and transcribing a corpus drawn from nine key collections of petitions held at national and local archives, totalling about 2,500 documents. This corpus, when combined with careful contextualisation, will allow the investigators to offer new answers to crucial questions about the major social and political changes that unfolded in this formative period. We will be able to examine the role of petitioning in specific moments such as the outbreak of civil war in 1642, the restoration of the monarchy in 1660, the Exclusion Crisis in 1679-81 and the Glorious Revolution of 1688. We will also be able to track how petitionary practices shaped - and were shaped by - long-term developments, such as the emergence of a politicised 'public sphere' and the vast expansion in the English state, by assessing how much petitioners' attention shifted from local to national authorities, and from individual to mass subscriptions. Such questions are central to understanding government and politics in this period, but they can only be addressed through methodical analysis of a substantial corpus of petitions. This resource will make it possible to go beyond questions specific to petitioning by offering a new perspective on the nature of state authority itself. Current understandings of formal power structures in seventeenth-century England have been drawn primarily from the writings of theorists or officeholders. In contrast, petitions provide a view of authority 'from below'. They will allow us to reconstruct the outlook of people who lacked any official authority of their own. What concerns did they believe should be addressed by their superiors? To whom did they direct their complaints or requests? How did they adapt their rhetoric to fit with the changing political and ideological complexion of the state? The transcribed petitions will be made freely available through a bespoke Institute of Historical Research website, augmented with contextual essays, and searchable by year, locality, sender, recipient, topic and response. So, while publications by the investigators will address the research questions above, other scholars will use this resource to pursuing further lines of inquiry. Moreover, this resource will also serve the needs of stakeholders beyond professional researchers. We will partner with two archives (Cheshire and London Metropolitan) and a large volunteer organisation (The University of the Third Age) to support lay researchers - such as local and family historians - working on this wealth of newly accessible material tagged by place and name. This project will therefore open up a new perspective on the seventeenth century for both scholars and the wider public.